67486 + Interview Questions in Secondary School in Physics

1.	A wire of unifonn cross-section is bent in theshape of a complete ring. Two diametrically opposite points on the wire are connected to the two terminals of left gap of a metrebridge. The resistance of 15 n is connected in the right gap. If the null point is obtained at 70 em from the left end of the bridge wire, find the resistance of the wire before bending it to a ring.
Answer» Answer: Answer Open in answr app Open_in_app Here we will use the principle of meter bridge So, Q P = S R where, P=40ρ [ρ is RESISTANCE/unit length] Q=60ρ S=15 Ω R=10 Ω Now, two POINTS are connected to the diameter of a ring.Therefore we have two PARALLEL path. If the resistance of both the path is r Then equivalent resistance = 2 r 2 r =10 r=20 Ω

1.

A wire of unifonn cross-section is bent in theshape of a complete ring. Two diametrically opposite points on the wire are connected to the two terminals of left gap of a metrebridge. The resistance of 15 n is connected in the right gap. If the null point is obtained at 70 em from the left end of the bridge wire, find the resistance of the wire before bending it to a ring.

Answer»

Answer:

Answer

Open in answr app

Open_in_app

Here we will use the principle of meter bridge

So,

Q

P

=

S

R

where,

P=40ρ [ρ is RESISTANCE/unit length]

Q=60ρ

S=15 Ω

R=10 Ω

Now, two POINTS are connected to the diameter of a ring.Therefore we have two PARALLEL path.

If the resistance of both the path is r

Then equivalent resistance =

2

r

2

r

=10

r=20 Ω

Discussion

2.	• The ground-state pressure of anelectron gas for sodium containing orelectron per atom is found to begiven density of sodium 9.7 x 103 kgcube )atomic weight of sodium 23
Answer» Explanation: ${\mathbb{\colorbox {orange} {\boxed{\boxed{\boxed{\boxed{\boxed{\colorbox {lime} {\boxed{\boxed{\boxed{\boxed{\boxed{\colorbox {aqua} {@tejas}}}}}}}}}}}}}}}$ Advertising helps a business to earn profits by ENABLING more people to know about the PRODUCTS and services and thus resulting in more SALES. The consumers on the other HAND will never get to know about the products and services if they are not advertised.

2.

• The ground-state pressure of anelectron gas for sodium containing orelectron per atom is found to begiven density of sodium 9.7 x 103 kgcube )atomic weight of sodium 23

Answer»

Explanation:

${\mathbb{\colorbox {orange} {\boxed{\boxed{\boxed{\boxed{\boxed{\colorbox {lime} {\boxed{\boxed{\boxed{\boxed{\boxed{\colorbox {aqua} {@tejas}}}}}}}}}}}}}}}$

Advertising helps a business to earn profits by ENABLING more people to know about the PRODUCTS and services and thus resulting in more SALES. The consumers on the other HAND will never get to know about the products and services if they are not advertised.

Discussion

3.	1. Find the node voltages V1 and V2 from below circuit3AV1V24A2 ohm6A2 ohm2 ohm
Answer» ANSWER: I don't now PLEASE SORRY

3.

1. Find the node voltages V1 and V2 from below circuit3AV1V24A2 ohm6A2 ohm2 ohm

Answer»

ANSWER:

I don't now PLEASE SORRY

Discussion

4.	Read the following and answer any four questions from 19 (i) to 19 (v)Balanced Forces when act on a body, the body either continues the state of rest or Uniform motion. Unbalanced force may change the state of an object and produces acceleration. A property called inertia is the inherent property of an object which resists any change in the state of the body when force is applied. Mass of an object is measure of inertia. 1x 4 19 (i) An object having mass 2kg is moving with constant velocity of 5ms-1. How much Force is acting on the body (A) infinite force (B) zero (C) 10 newton (D) 2.5 newtonobject in figure is (A) zero (B) 2N right side of the body (C) 2N left side of the body (D) None 19 (iii) Which of the following has least inertia (A) A tennis ball (B) A cricket ball (C) A bicycle (D) A car 19(iv) A passenger falls forward when a moving bus suddenly stops, This can be explained using(A) Inertia of rest (B) Inertia of motion (C) inertia of direction (D) None 19 (v) A rolling object stops because of(A) Balanced force (B) Unbalanced force
Answer» Answer: 3 DA answer OPTION A) A tennis ball 4 da answer option B) inertia of motion 5 da answer option B) unbalanced force 1 da answer option B) 0/zero Explanation: Pls MARK me as Brainlaist❤

4.

Read the following and answer any four questions from 19 (i) to 19 (v)Balanced Forces when act on a body, the body either continues the state of rest or Uniform motion. Unbalanced force may change the state of an object and produces acceleration. A property called inertia is the inherent property of an object which resists any change in the state of the body when force is applied. Mass of an object is measure of inertia. 1x 4 19 (i) An object having mass 2kg is moving with constant velocity of 5ms-1. How much Force is acting on the body (A) infinite force (B) zero (C) 10 newton (D) 2.5 newtonobject in figure is (A) zero (B) 2N right side of the body (C) 2N left side of the body (D) None 19 (iii) Which of the following has least inertia (A) A tennis ball (B) A cricket ball (C) A bicycle (D) A car 19(iv) A passenger falls forward when a moving bus suddenly stops, This can be explained using(A) Inertia of rest (B) Inertia of motion (C) inertia of direction (D) None 19 (v) A rolling object stops because of(A) Balanced force (B) Unbalanced force

Answer»

Answer:

3 DA answer OPTION A) A tennis ball

4 da answer option B) inertia of motion

5 da answer option B) unbalanced force

1 da answer option B) 0/zero

Explanation:

Pls MARK me as Brainlaist❤

Discussion

5.	Balanced Forces when act on a body, the body either continues the state of rest or Uniformmotion. Unbalanced force may change the state of an object and produces acceleration. A property called inertia is the inherent property of an object which resists any change in the state of the body when force is applied. Mass of an object is measure of inertia. 1x 4 19 (i) An object having mass 2kg is moving with constant velocity of 5ms-1. How much Force is acting on the body (A) infinite force (B) zero (C) 10 newton (D) 2.5 newton
Answer» ANSWER: (i) (B) Zero Explanation: F=ma F=2×0 =0

5.

Balanced Forces when act on a body, the body either continues the state of rest or Uniformmotion. Unbalanced force may change the state of an object and produces acceleration. A property called inertia is the inherent property of an object which resists any change in the state of the body when force is applied. Mass of an object is measure of inertia. 1x 4 19 (i) An object having mass 2kg is moving with constant velocity of 5ms-1. How much Force is acting on the body (A) infinite force (B) zero (C) 10 newton (D) 2.5 newton

Answer»

ANSWER:

(i) (B) Zero

Explanation:

F=ma

F=2×0

=0

Discussion

6.	1. Which of these is true about the Big Bang model?a. The singularity is an established, well-defined part of the model.b. Cosmic expansion stopped at some point in time.c. Part of its proof is the amounts of H and He we have in the universe today.d. The Big Bang was a big explosion that threw matter into many different directions
Answer» Answer: hu hi hoga in this THREAD in this thread for me Explanation: yaha of this COMMUNICATION and interpretation and age is that they were to me so MUCH more information and the rest andersonal of

6.

1. Which of these is true about the Big Bang model?a. The singularity is an established, well-defined part of the model.b. Cosmic expansion stopped at some point in time.c. Part of its proof is the amounts of H and He we have in the universe today.d. The Big Bang was a big explosion that threw matter into many different directions

Answer»

Answer:

hu hi hoga in this THREAD in this thread for me

Explanation:

yaha of this COMMUNICATION and interpretation and age is that they were to me so MUCH more information and the rest andersonal of

Discussion

7.	A person of 60kg climbs a stair case and reaches to a height of 4m. Calculate the potential energy acquired by the person. (take g = 10m/s^2)There Exams gone ... nd here Creativity on .... xDNew sketch... how's it ... >_< ...
Answer» ANSWER: POTENTIAL ENERGY = MGH 60×10×4 = 2400kgm2/s2

7.

A person of 60kg climbs a stair case and reaches to a height of 4m. Calculate the potential energy acquired by the person. (take g = 10m/s^2)There Exams gone ... nd here Creativity on .... xDNew sketch... how's it ... >_< ...

Answer»

ANSWER:

POTENTIAL ENERGY = MGH

60×10×4

= 2400kgm2/s2

Discussion

8.	The area moment of inertia of a triangle of baseb = 24 cm and height h = 30cm aboutits base isans.11520 cm454000 cm418000 cm41182 cm4-
Answer» Answer: The AREA moment of inertia of a triangle of BASE b = 24 cm and height H = 30CM about its base is ans. 11520 cm4 54000 cm4 18000 cm4 1182 cm4 -

8.

The area moment of inertia of a triangle of baseb = 24 cm and height h = 30cm aboutits base isans.11520 cm454000 cm418000 cm41182 cm4-

Answer»

Answer:

The AREA moment of inertia of a triangle of BASE

b = 24 cm and height H = 30CM about

its base is

ans.

11520 cm4

54000 cm4

18000 cm4

1182 cm4

-

Discussion

9.	गोविंद गुरुकुल खरगोनवार्षिक परीक्षा 2020-कक्षा 8वींविषयः-संस्कृतपूर्णाक 100प्रष्ना अनिवार्या सन्ति।त विकल्पं चित्चा लिखिए-बहुवचनान्त पदम् लिखत-नारी(10ब पत्रेसतौदसर्वाणिनिरातT
Answer» Answer: Here we have GIVEN MADHYA Pradesh SYLLABUS MP Board Surbhi Sanskrit Book Class 8

9.

गोविंद गुरुकुल खरगोनवार्षिक परीक्षा 2020-कक्षा 8वींविषयः-संस्कृतपूर्णाक 100प्रष्ना अनिवार्या सन्ति।त विकल्पं चित्चा लिखिए-बहुवचनान्त पदम् लिखत-नारी(10ब पत्रेसतौदसर्वाणिनिरातT

Answer»

Answer:

Here we have GIVEN MADHYA Pradesh SYLLABUS MP Board Surbhi Sanskrit Book Class 8

Discussion

10.	(i) Name any three parts in plant cell which differentiate it from an animal cell and mentiontheir function.
Answer» Answer: • Cell Wall Plants POSSESS cell wall while ANIMAL CELLS don't. • Contractile VACUOLE Though it is present in both plant and animal cells, the size of a contractile vacuole is larger in plant cells. It is mainly due to the reason that plants do not have any other method of osmo-regulation. • Plastids Plant cells have organelles called plastids which HELP them in photosynthesis. Animals don't have plastids.

10.

(i) Name any three parts in plant cell which differentiate it from an animal cell and mentiontheir function.

Answer»

Answer:

• Cell Wall

Plants POSSESS cell wall while ANIMAL CELLS don't.

• Contractile VACUOLE

Though it is present in both plant and animal cells, the size of a contractile vacuole is larger in plant cells. It is mainly due to the reason that plants do not have any other method of osmo-regulation.

• Plastids

Plant cells have organelles called plastids which HELP them in photosynthesis. Animals don't have plastids.

Discussion

11.	Ans wer the eq (10-6024+95+62556)
Answer» EXPLANATION: uvybkcyviguglfeiofrohog6d6fu0x58djpc95x9yc

11.

Ans wer the eq (10-6024+95+62556)

Answer»

EXPLANATION:

uvybkcyviguglfeiofrohog6d6fu0x58djpc95x9yc

Discussion

12.	Acceleration of a particle is given by a = t3 - 3t2+ 5, where t = time in seconds and a =acceleration in m/s2. Velocity of the particlewhen t = 2 sec is 8 m/s. velocity of the particlewhen t = 4 sec isans.22 m/s32 m/s25 m/s28 m/s
Answer» Answer: The answer is 32 m/s. Explanation: a = t^3 - 3t^2 On DIFFERENTIATING, ∆v = 3t^2 - 6T v - 8 = 3 × ( 4^2 - 2^2 ) - ( 6×4 - 6×2 ) v - 8 = 3 × ( 16 - 4 ) - ( 24 - 12 ) v = 36 - 12 + 8 v = 24 + 8 v = 32 m/s

12.

Acceleration of a particle is given by a = t3 - 3t2+ 5, where t = time in seconds and a =acceleration in m/s2. Velocity of the particlewhen t = 2 sec is 8 m/s. velocity of the particlewhen t = 4 sec isans.22 m/s32 m/s25 m/s28 m/s

Answer»

Answer:

The answer is 32 m/s.

Explanation:

a = t^3 - 3t^2

On DIFFERENTIATING,

∆v = 3t^2 - 6T

v - 8 = 3 × ( 4^2 - 2^2 ) - ( 6×4 - 6×2 )

v - 8 = 3 × ( 16 - 4 ) - ( 24 - 12 )

v = 36 - 12 + 8

v = 24 + 8

v = 32 m/s

Discussion

13.	Acceleration of a particle is given by a = t3 – 3t2+ 5, where t = time in seconds and a =acceleration in m/s2. Velocity of the particlewhen t = 2 sec is 8 m/s. velocity of the particlewhen t = 4 sec isans.22 m/s32 m/s25 m/s28 m/s
Answer» Answer: 22 m/s Explanation: velocity = ∫a .DT = ∫(t³ - 3t² + 5) dt = (t⁴/4) - t³ + 5t + C At t = 2, velocity is 8 m/s velocity = (2⁴/4) - 2³ + 5(2) + C 8 = 4 - 8 + 10 + C 2 = C Therefore, at t = 4 velocity = (4⁴/4) - 4³ + 5(4) + C = 4³ - 4³ + 20 + 2 {C=2} = 22 m/s

13.

Acceleration of a particle is given by a = t3 – 3t2+ 5, where t = time in seconds and a =acceleration in m/s2. Velocity of the particlewhen t = 2 sec is 8 m/s. velocity of the particlewhen t = 4 sec isans.22 m/s32 m/s25 m/s28 m/s

Answer»

Answer:

22 m/s

Explanation:

velocity = ∫a .DT

= ∫(t³ - 3t² + 5) dt

= (t⁴/4) - t³ + 5t + C

At t = 2, velocity is 8 m/s

velocity = (2⁴/4) - 2³ + 5(2) + C

8 = 4 - 8 + 10 + C

2 = C

Therefore, at t = 4

velocity = (4⁴/4) - 4³ + 5(4) + C

= 4³ - 4³ + 20 + 2 {C=2}

= 22 m/s

Discussion

14.	What quantity do we obtain if we calculate area under the velocity time graph?(A) displacement(B) velocity(C) acceleration(D) None of the above
Answer» ANSWER: a ) *DISPLACEMENT* HOPE it HELPS!!!

14.

What quantity do we obtain if we calculate area under the velocity time graph?(A) displacement(B) velocity(C) acceleration(D) None of the above

Answer»

ANSWER:

a ) DISPLACEMENT

HOPE it HELPS!!!

Discussion

15.	Two isotopes of Uranium have 92 electrons each and have 144, 148 neutrons respectively.Mass numbers of these two isotopes will be respectively what??
Answer» Answer: 236 and 240 Explanation: MASS number = Number of protons(atomic number) + Number of neutrons Mass number of 1st ISOTOPE = 92 + 144 = 236 Mass number of 2nd isotope = 92 + 148 = 240

15.

Two isotopes of Uranium have 92 electrons each and have 144, 148 neutrons respectively.Mass numbers of these two isotopes will be respectively what??

Answer»

Answer:

236 and 240

Explanation:

MASS number = Number of protons(atomic number) + Number of neutrons

Mass number of 1st ISOTOPE = 92 + 144 = 236

Mass number of 2nd isotope = 92 + 148 = 240

Discussion

16.	A motor cycle and rider having a total weightW=1500N travels in a vertical plane following acurve of radius r=50m at a speed of 10m/sec.Compute the thrust exerted by the road as itpasses over the crest C on the curve as shownin the Fig. Assume g=10m/s2ans.1600N1500N1000N1200N
Answer» In cases like these, the thrust (or normal) exerted by the road is the SUM or difference of the weight of the body and centripetal force. In this case,. thrust = weight - centripetal force = mg - m v^2 / R = 1500 - (1500/10) × ( 10^2 ) / 50 = 1500 - 150 × 100 / 50 = 1500 - 300 = 1200 N PS- The figure is not given and the question isn't as clear, but this is what I think the question is asking. Do TELL me if I'm wrong.

16.

A motor cycle and rider having a total weightW=1500N travels in a vertical plane following acurve of radius r=50m at a speed of 10m/sec.Compute the thrust exerted by the road as itpasses over the crest C on the curve as shownin the Fig. Assume g=10m/s2ans.1600N1500N1000N1200N

Answer»

In cases like these, the thrust (or normal) exerted by the road is the SUM or difference of the weight of the body and centripetal force.

In this case,. thrust = weight - centripetal force

= mg - m v^2 / R

= 1500 - (1500/10) × ( 10^2 ) / 50

= 1500 - 150 × 100 / 50

= 1500 - 300

= 1200 N

PS- The figure is not given and the question isn't as clear, but this is what I think the question is asking. Do TELL me if I'm wrong.

Discussion

17.	Force of 150 N moves a body in 5 sec along astraight line according to x = t3 - 60t. What is themass of the moving body?ans.5Kg15Kg15.23Kg17.23 kg
Answer» Answer: 17.23Kg Explanation: because the BODY WEIGHT is HIGH

17.

Force of 150 N moves a body in 5 sec along astraight line according to x = t3 - 60t. What is themass of the moving body?ans.5Kg15Kg15.23Kg17.23 kg

Answer»

Answer:

17.23Kg

Explanation:

because the BODY WEIGHT is HIGH

Discussion

18.	(vi) Wherever necessary,SECTION - ANoQuestions1. The ratio of distance to displacement made by an object moving in a curved path is(A) zero(B) 1(C) less than 1(D) greater than oneOrThe ratio of speed to velocity made by an object moving in a curved path is
Answer» ANSWER: Great tane one Explanation: PLEASE Like Me AT BRAINLIEST

18.

(vi) Wherever necessary,SECTION - ANoQuestions1. The ratio of distance to displacement made by an object moving in a curved path is(A) zero(B) 1(C) less than 1(D) greater than oneOrThe ratio of speed to velocity made by an object moving in a curved path is

Answer»

ANSWER:

Great tane one

Explanation:

PLEASE Like Me AT BRAINLIEST

Discussion

19.	• The 10 particles are distributed in2 equal size cells. The number ofMacrostates and Microstates areAnswer
Answer» Answer: If n particles are to be distributed in 2 compts. The distinct ARRANGEMENT of the particles of a SYSTEM is called its microstate. The NUMBERS of MICROSTATES in a given macrostate is called thermodynamics probability or FREQUENCY of that macrostate.

19.

• The 10 particles are distributed in2 equal size cells. The number ofMacrostates and Microstates areAnswer

Answer»

Answer:

If n particles are to be distributed in 2 compts. The distinct ARRANGEMENT of the particles of a SYSTEM is called its microstate. The NUMBERS of MICROSTATES in a given macrostate is called thermodynamics probability or FREQUENCY of that macrostate.

Discussion

20.	A horizontal prismatic bar AB of negligibleweight is pinned at A and supported at B bya string BC as shown in fig 1. A weight P = 50 Nis placed on the bar at a distance 3 mfrom A. The tensile force T developed in thestring would beP = 5ON30"UB3m8mFig. 1ans.36.08 N15.62 N27.06 N62.5N
Answer» Explanation: i dont KNOW the ANSWER i am just TRYING to receive POINT soory

20.

A horizontal prismatic bar AB of negligibleweight is pinned at A and supported at B bya string BC as shown in fig 1. A weight P = 50 Nis placed on the bar at a distance 3 mfrom A. The tensile force T developed in thestring would beP = 5ON30"UB3m8mFig. 1ans.36.08 N15.62 N27.06 N62.5N

Answer»

Explanation:

i dont KNOW the ANSWER i am just TRYING to receive POINT soory

Discussion

21.	When Magnesium ribbon is burnt in air, write any two observations and name the type ofthe reaction.
Answer» ANSWER: When magnesium ribbon is burnt in the air, it combines with OXYGEN to form white powder magnesium oxide MgO with the RELEASE of heat and light. It forms a white powder of magnesium oxide. Magnesium gives up TWO electrons to oxygen atoms to form this powdery product. 2Mg + O2⟶ 2MgO It is the concept of exothermic reaction.

21.

When Magnesium ribbon is burnt in air, write any two observations and name the type ofthe reaction.

Answer»

ANSWER:

When magnesium ribbon is burnt in the air, it combines with OXYGEN to form white powder magnesium oxide MgO with the RELEASE of heat and light. It forms a white powder of magnesium oxide. Magnesium gives up TWO electrons to oxygen atoms to form this powdery product.

2Mg + O2⟶ 2MgO

It is the concept of exothermic reaction.

Discussion

22.	State the laws of refraction of light. Explain the term „absolute refractive index of a medium‟and write an expression to relate it with the speed of light in vacuum
Answer» Laws of refraction STATE that: The incident ray refracted ray, and the normal to the interface of two media at the point of incidence all lie on the same plane. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant. This is also known as Snell's law of refraction The term 'absolute REFRACTIVE index' of a medium is defined as the ratio of the velocity of light in a vacuum to the velocity of light in the medium refractive index= SPEED of light in air / speed of light in the given medium HOPE it has helped you

22.

State the laws of refraction of light. Explain the term „absolute refractive index of a medium‟and write an expression to relate it with the speed of light in vacuum

Answer»

Laws of refraction STATE that: The incident ray refracted ray, and the normal to the interface of two media at the point of incidence all lie on the same plane. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant. This is also known as Snell's law of refraction

The term 'absolute REFRACTIVE index' of a medium is defined as the ratio of the velocity of light in a vacuum to the velocity of light in the medium

refractive index= SPEED of light in air / speed of light in the given medium

HOPE it has helped you

Discussion

23.	Give the important rules of the new Cartesian sign convention followed forreflection of light by spherical mirrors.
Answer» Explanation: the pole P of the spherical mirror is TAKEN at the origin and the PRINCIPAL AXIS of the mirror along the X axis of co-ordinate system .

23.

Give the important rules of the new Cartesian sign convention followed forreflection of light by spherical mirrors.

Answer»

Explanation:

the pole P of the spherical mirror is TAKEN at the origin and the PRINCIPAL AXIS of the mirror along the X axis of co-ordinate system .

Discussion

24.	What does the slope of the graph represent?(A) acceleration(B) velocity(C) force(D) momentum
Answer» ANSWER: acceleration Explanation: HOPE it HELPS

24.

What does the slope of the graph represent?(A) acceleration(B) velocity(C) force(D) momentum

Answer»

ANSWER:

acceleration

Explanation:

HOPE it HELPS

Discussion

25.	An element has atomic number II. Where would you expect this element in the periodic tableand why?
Answer» ANSWER: it is an s BLOCK element Explanation: because the OUTERMOST SHELL is S

25.

An element has atomic number II. Where would you expect this element in the periodic tableand why?

Answer»

ANSWER:

it is an s BLOCK element

Explanation:

because the OUTERMOST SHELL is S

Discussion

26.	Question No. 21• In Normal Zeeman effect a levelof a given I Spit intoAnswerA. TlevelB.O 21 levelc.O (21+1) levelD.O (21-1) level
Answer» EXPLANATION: a the B B in the MAIN GATE hirtutffu

26.

Question No. 21• In Normal Zeeman effect a levelof a given I Spit intoAnswerA. TlevelB.O 21 levelc.O (21+1) levelD.O (21-1) level

Answer»

EXPLANATION:

a the B B in the MAIN GATE hirtutffu

Discussion

27.	Q7. The naval base of the Indian navy issituated in:-:Bidar:Bangalore:Karwar:Mangalore
Answer» ANSWER: FOLL.. ow me.. please.. and GIVE me HEART ❤❤❤

27.

Q7. The naval base of the Indian navy issituated in:-:Bidar:Bangalore:Karwar:Mangalore

Answer»

ANSWER:

FOLL.. ow me.. please.. and GIVE me HEART ❤❤❤

Discussion

28.	Read the following and answer any four questions from 19 (i) to 19 (v)Balanced Forces when act on a body, the body either continues the state of rest or Uniform motion. Unbalanced force may change the state of an object and produces acceleration. A property called inertia is the inherent property of an object which resists any change in the state of the body when force is applied. Mass of an object is measure of inertiajnv farour
Answer» ANSWER: OPTION a Explanation:

28.

Read the following and answer any four questions from 19 (i) to 19 (v)Balanced Forces when act on a body, the body either continues the state of rest or Uniform motion. Unbalanced force may change the state of an object and produces acceleration. A property called inertia is the inherent property of an object which resists any change in the state of the body when force is applied. Mass of an object is measure of inertiajnv farour

Answer»

ANSWER:

OPTION a

Explanation:

Discussion

29.	Howwouldyouobtainclearwaterformmuddywater?Explainwiththehelpofactivity.
Answer» ANSWER: by the PROCESS of FILTRATION

29.

Howwouldyouobtainclearwaterformmuddywater?Explainwiththehelpofactivity.

Answer»

ANSWER:

by the PROCESS of FILTRATION

Discussion

30.	Iv) What quantity do we obtain if we calculate area under the given graph?(A)displacement(B) velocity(C) acceleration(D) None of the above
Answer» We can obtain displacement if we calculate the area of the GIVEN graph. The given graph is the graph of VELOCITY and time. If we calculate the area of the given velocity-time graph then we will get the VALUE of the displacement of the body. On the other hand, the SLOPE of the given velocity-time graph will be REPRESENTING the acceleration of that body. In this way, velocity-time graph helps us to calculate the values of displacement and acceleration.

30.

Iv) What quantity do we obtain if we calculate area under the given graph?(A)displacement(B) velocity(C) acceleration(D) None of the above

Answer»

We can obtain displacement if we calculate the area of the GIVEN graph.

The given graph is the graph of VELOCITY and time.
If we calculate the area of the given velocity-time graph then we will get the VALUE of the displacement of the body.
On the other hand, the SLOPE of the given velocity-time graph will be REPRESENTING the acceleration of that body.
In this way, velocity-time graph helps us to calculate the values of displacement and acceleration.

Discussion

31.	The net force acting on theobject in figure is(A) zero (B) 2N right side of the body (C) 2N left side of the body (D) None
Answer» ANSWER: zeroooooooo give me THANKS

31.

The net force acting on theobject in figure is(A) zero (B) 2N right side of the body (C) 2N left side of the body (D) None

Answer»

ANSWER:

zeroooooooo

give me THANKS

Discussion

32.	Question No. 17The 10 particles are distributed in2 equal size cells. The number ofMacrostates and Microstates areAnswerA. 18, 2 raise to 7 respectivelyiiلم ن
Answer» ANSWER: مرحبا تو AAPNI أماه CHOD مرحبا كيسي هو. تطبيق صبحي

32.

Question No. 17The 10 particles are distributed in2 equal size cells. The number ofMacrostates and Microstates areAnswerA. 18, 2 raise to 7 respectivelyiiلم ن

Answer»

ANSWER:

مرحبا تو AAPNI أماه CHOD مرحبا كيسي هو. تطبيق صبحي

Discussion

33.	Due to application of brakes, the car produces 4 m/s2acceleration in the opposite direction to themotion. If the car takes 2 seconds to stop after the application of brakes then, calculate the distancetravelled by car during this time.
Answer» Explanation: Due to application of BRAKES, the car produces 4 m/s2 acceleration in the opposite DIRECTION to the motion. If the car takes 2 seconds to STOP after the application of brakes then, CALCULATE the distance travelled by car during this TIME.

33.

Due to application of brakes, the car produces 4 m/s2acceleration in the opposite direction to themotion. If the car takes 2 seconds to stop after the application of brakes then, calculate the distancetravelled by car during this time.

Answer»

Explanation:

Due to application of BRAKES, the car produces 4 m/s2

acceleration in the opposite DIRECTION to the

motion. If the car takes 2 seconds to STOP after the application of brakes then, CALCULATE the distance

travelled by car during this TIME.

Discussion

34.	Define Kinetic Energy. Write expression for Kinetic Energy.A force of 12N acts on anobject of mass of 4kg in the state of rest for 3s. Calculate the kinetic energy acquired by the object
Answer» Given that, Force = 12N Mass = 4kg Time = 3s Velocity = ? KINETIC ENERGY = ? LET's calculate velocity, F = ma { a = v/t } F = mv/t 12 = 4×v/3 v = 9 m/s Let's calculate Kinetic energy = 1/2mv^2 1/2×4×9×9 162 J. Therefore, the Kinetic energy is 162 J. Hope this helps you. Thank you for your question. Mark me as BRAINLEIST.

34.

Define Kinetic Energy. Write expression for Kinetic Energy.A force of 12N acts on anobject of mass of 4kg in the state of rest for 3s. Calculate the kinetic energy acquired by the object

Answer»

Given that,

Force = 12N

Mass = 4kg

Time = 3s

Velocity = ?

KINETIC ENERGY = ?

LET's calculate velocity,

F = ma { a = v/t }

F = mv/t

12 = 4×v/3

v = 9 m/s

Let's calculate Kinetic energy = 1/2mv^2

1/2×4×9×9

162 J.

Therefore, the Kinetic energy is 162 J.

Hope this helps you.

Thank you for your question.

Mark me as BRAINLEIST.

Discussion

35.	Pieapal aliun0.3. Define and classify solutions. What are the advantages and disadvantages of solutionsQ.4. Eloborate on excipients used in formulation of liquid dosage formsWrite idiesbac
Answer» A solution is defined as a homogenous mixture which mainly comprises two components NAMELY solute and solvent. On the BASIS of physical states of solvent and solute can be categorized as solid, LIQUID and GASEOUS solutions.In solid solutions, solute and solvent are in the solid-state. In liquid solutions, solid, gas or liquid is mixed in a liquid state. Gaseous solutions are usually homogenous mixtures of gases like air. Depending upon a number of solutions and solute, it can be classified into dilute and concentrated solutions. Different Types of Solutions supersaturated solution unsaturated solution saturated solution The solutions are of two forms, depending on whether the solvent is water or not. Aqueous solution Non-aqueous solution NOTE There in the image it's disadvantages and advantages of solution. Go through it. Hope I understood you question properly and it HELPED you.

35.

Pieapal aliun0.3. Define and classify solutions. What are the advantages and disadvantages of solutionsQ.4. Eloborate on excipients used in formulation of liquid dosage formsWrite idiesbac

Answer»

A solution is defined as a homogenous mixture which mainly comprises two components NAMELY solute and solvent.

On the BASIS of physical states of solvent and solute can be categorized as solid, LIQUID and GASEOUS solutions.In solid solutions, solute and solvent are in the solid-state. In liquid solutions, solid, gas or liquid is mixed in a liquid state. Gaseous solutions are usually homogenous mixtures of gases like air. Depending upon a number of solutions and solute, it can be classified into dilute and concentrated solutions.

Different Types of Solutions

supersaturated solution
unsaturated solution
saturated solution

The solutions are of two forms, depending on whether the solvent is water or not.

Aqueous solution
Non-aqueous solution

NOTE

There in the image it's disadvantages and advantages of solution.

Go through it.

Hope I understood you question properly and it HELPED you.

Discussion

36.	In the given samples of liquid,which has more viscosity?.water.semen.juice. coconut oil
Answer» ANSWER: I AM A GIRL ❤❤❤❤❣❣❣❣❣❣❤❤❤

36.

In the given samples of liquid,which has more viscosity?.water.semen.juice. coconut oil

Answer»

ANSWER:

I AM A GIRL ❤❤❤❤❣❣❣❣❣❣❤❤❤

Discussion

37.	The symbol Ci stands for which tensor?ans.C) Mixedb) Co-varianta) Contra-variantd) None of the above
Answer» ANSWER: օԹԵíօղ (ϲ) íՏ ϲօɾɾҽϲԵ օղҽ✔️

37.

The symbol Ci stands for which tensor?ans.C) Mixedb) Co-varianta) Contra-variantd) None of the above

Answer»

ANSWER:

օԹԵíօղ (ϲ) íՏ ϲօɾɾҽϲԵ օղҽ✔️

Discussion

38.	For the one-dimensional motion, described byx = t - sint(a) x(t) > 0 for all t > 0(b) v(t) > 0 for all t> 0(c) a(t) > 0 for all t > 0(d) all of theseCorrect answer with proper EXPLANATION will be marked as BRAINLIEST... otherwise will be reported!!!
Answer» ANSWER: THA answer is a (C) I am not RIGHT

38.

For the one-dimensional motion, described byx = t - sint(a) x(t) > 0 for all t > 0(b) v(t) > 0 for all t> 0(c) a(t) > 0 for all t > 0(d) all of theseCorrect answer with proper EXPLANATION will be marked as BRAINLIEST... otherwise will be reported!!!

Answer»

ANSWER:

THA answer is a (C) I am not RIGHT

Discussion

39.	An object having mass 2kg is moving with constant velocity of 5ms-1. How much Force isacting on the body (A) infinite force (B) zero (C) 10 newton (D) 2.5 newtonAnswer Me Fast plz its urgent
Answer» Given that, Mass = 2 kg Acceleration = 5 m/s Force = ? We know, Force = Mass × Acceleration Force = 2 × 5 Force = 10 N Therefore, the force is 10 N

39.

An object having mass 2kg is moving with constant velocity of 5ms-1. How much Force isacting on the body (A) infinite force (B) zero (C) 10 newton (D) 2.5 newtonAnswer Me Fast plz its urgent

Answer»

Given that,

Mass = 2 kg

Acceleration = 5 m/s

Force = ?

We know,

Force = Mass × Acceleration

Force = 2 × 5

Force = 10 N

Therefore, the force is 10 N

Discussion

40.	5 Ifa + b + c = 0. The angle between a and band b and c are 150° and 120°,respectively. Then, the magnitude of vectors a, b and c are in ratio ofa. 1:2:3b. 1:2:13c. 13:2:1d. 2:13:1
Answer» ANSWER: I THINK it should be (C) 13:2:1 Explanation:

40.

5 Ifa + b + c = 0. The angle between a and band b and c are 150° and 120°,respectively. Then, the magnitude of vectors a, b and c are in ratio ofa. 1:2:3b. 1:2:13c. 13:2:1d. 2:13:1

Answer»

ANSWER:

I THINK it should be

(C) 13:2:1

Explanation:

Discussion

41.	Find change in the current through resistanceR3 when it is incremented to 8 ohmWWRI6V (tR2 822
Answer» I don't KNOW this ANSWER and I cannot explain me is very HARD I am in 5th STANDARD sorry

Discussion

42.	4. Write the structural formula and IUPAC name of the following compounds.(a) acetic acid(b) n-propyl chloride(c) ethyl methyl ketone
Answer» ANSWER: ACETIC ACID Explanation: Acetic acid

42.

4. Write the structural formula and IUPAC name of the following compounds.(a) acetic acid(b) n-propyl chloride(c) ethyl methyl ketone

Answer»

ANSWER:

ACETIC ACID

Explanation:

Acetic acid

Discussion

43.	Object in figure is(A) zero (B) 2N right side of the body (C) 2N left side of the body (D) None
Answer» FIRST of all GIVE the FIGURE

Discussion

44.	A Particle is moviong in aCircular path withwith a continuously increasing Speed its Motion is.one word answer
Answer» ANSWER: CIRCULAR motio holayib

44.

A Particle is moviong in aCircular path withwith a continuously increasing Speed its Motion is.one word answer

Answer»

ANSWER:

CIRCULAR motio holayib

Discussion

45.	A car starts from rest and attains a velocity of 20m/s in 5s. Calculate the distance during thistime.
Answer» Answer: 50 m Explanation: GIVEN : u = 0 m/s : v = 20 m/s : T = 5 s To FIND : S = ? We know that a = v - u/ t a = 20 - 0 / 5 a = 4 m/s² Now By 2 equation of motion S = ut + 1/2 at² S = 0 × 5 + 1/2 × 4 × 5² S = 0 + 1/2 × 4 × 25 S = 1 × 2 × 25 S = 50 m Hope It helps you Thanks

45.

A car starts from rest and attains a velocity of 20m/s in 5s. Calculate the distance during thistime.

Answer»

Answer:

50 m

Explanation:

GIVEN : u = 0 m/s
: v = 20 m/s
: T = 5 s
To FIND : S = ?
We know that
a = v - u/ t
a = 20 - 0 / 5
a = 4 m/s²

Now

By 2 equation of motion

S = ut + 1/2 at²

S = 0 × 5 + 1/2 × 4 × 5²

S = 0 + 1/2 × 4 × 25

S = 1 × 2 × 25

S = 50 m

Hope It helps you

Thanks

Discussion

46.	32. Find the acceleration of the block of mass M in thesituation shown in figure (5-E15). All the surfaces arefrictionless and the pulleys and the string are light.M30°2MFigure 5-E15
Answer» ANSWER: ghtsft my MOBILE no is 6345880561

46.

32. Find the acceleration of the block of mass M in thesituation shown in figure (5-E15). All the surfaces arefrictionless and the pulleys and the string are light.M30°2MFigure 5-E15

Answer»

ANSWER:

ghtsft my MOBILE no is 6345880561

Discussion

47.	+5VNYIMFind the Boolean expression for Y and F.(a) Y=Ã and F=M-X+N-(b) Y = { and F =(M+N)X(c) Y=X and F=M-X+N-(d) Y = X and F=(M+N)X
Answer» ANSWER: WANT some FRIENDS ( ꈍᴗꈍ) ❤️❤️

47.

+5VNYIMFind the Boolean expression for Y and F.(a) Y=Ã and F=M-X+N-(b) Y = { and F =(M+N)X(c) Y=X and F=M-X+N-(d) Y = X and F=(M+N)X

Answer»

ANSWER:

WANT some FRIENDS ( ꈍᴗꈍ) ❤️❤️

Discussion

48.	1) Identify the type of motion from the following.(A) car is not in motion(B) car is moving with uniform velocity(C) car is moving with uniform acceleration(D)None of the above2) What does the slope of the graph represent?(A) acceleration(B) velocity(C) force(D)momentum3) What kind of graph do we obtain if we plot position – time graph of the car(A)Straight line parallel to X axis(B) Straight line parallel to Y axis(C) parabola(D)Zig Zag curve4)What quantity do we obtain if we calculate area under the given graph?(A)displacement(B) velocity(C) acceleration(D)None of the above
Answer» ANSWER: hi EVERYONE I am GOING on my way so bye take CARE everyone

48.

1) Identify the type of motion from the following.(A) car is not in motion(B) car is moving with uniform velocity(C) car is moving with uniform acceleration(D)None of the above2) What does the slope of the graph represent?(A) acceleration(B) velocity(C) force(D)momentum3) What kind of graph do we obtain if we plot position – time graph of the car(A)Straight line parallel to X axis(B) Straight line parallel to Y axis(C) parabola(D)Zig Zag curve4)What quantity do we obtain if we calculate area under the given graph?(A)displacement(B) velocity(C) acceleration(D)None of the above

Answer»

ANSWER:

hi EVERYONE I am GOING on my way so bye take CARE everyone

Discussion

49.	Hum jinke liye tayag karte Hain unke Maan pe Sashan karna chahate Hain kiski ma'am isithi Ka warn Hain?Select one:A. सूर्यप्रतापOB. रायसाहबOC. प्रो. मेहताD. रुद्रपाल...
Answer»

Discussion

50.	Read the following and answer any four questions from 18 (i)to 18 (v). The motion of a car is represented by The Graph given here. It is a Velocity-Time graph 1x 4 18 (i) Identify the type of motion from the following. (A) car is not in motion (B) car is moving with uniform velocity (C) car is moving with uniform acceleration (D)None of the above 18 (ii) What does the slope of the graph represent? (A) acceleration (B) velocity (C) force (D)momentum 18 (iii) What kind of graph do we obtain if we plot position – time graph of the car (A)Straight line parallel to X axis (B) Straight line parallel to Y axis (C) parabola (D)Zig Zag curve 18 (iv) What quantity do we obtain if we calculate area under the given graph? (A)displacement (B) velocity (C) acceleration (D)None of the above
Answer» Answer: HI everyone I am going on my WAY so BYE TAKE care everyone

50.

Read the following and answer any four questions from 18 (i)to 18 (v). The motion of a car is represented by The Graph given here. It is a Velocity-Time graph 1x 4 18 (i) Identify the type of motion from the following. (A) car is not in motion (B) car is moving with uniform velocity (C) car is moving with uniform acceleration (D)None of the above 18 (ii) What does the slope of the graph represent? (A) acceleration (B) velocity (C) force (D)momentum 18 (iii) What kind of graph do we obtain if we plot position – time graph of the car (A)Straight line parallel to X axis (B) Straight line parallel to Y axis (C) parabola (D)Zig Zag curve 18 (iv) What quantity do we obtain if we calculate area under the given graph? (A)displacement (B) velocity (C) acceleration (D)None of the above

Answer»

Answer:

HI everyone I am going on my WAY so BYE TAKE care everyone

Discussion

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Define Kinetic Energy. Write expression for Kinetic Energy.A force of 12N acts on anobject of mass of 4kg in the state of rest for 3s. Calculate the kinetic energy acquired by the object

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An object having mass 2kg is moving with constant velocity of 5ms-1. How much Force isacting on the body (A) infinite force (B) zero (C) 10 newton (D) 2.5 newtonAnswer Me Fast plz its urgent

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