67486 + Interview Questions in Secondary School in Physics

1.	Please solve question.don't choose simply option
Answer» Answer: 3d7dhdgbxshhshhshbcbxbdj

1.

Please solve question.don't choose simply option

Answer»

Answer:

3d7dhdgbxshhshhshbcbxbdj

Discussion

2.	nummerical- A point is situated at 6.5 cm and 6.65 cm from two coherent sources .find the nature of illumination at the point if wavelength of light is 5000 A°-5 mark question
Answer» EXPLANATION: jsisjwvh wkiwhwv iwbwben iwvvw. js7b KSU

2.

nummerical- A point is situated at 6.5 cm and 6.65 cm from two coherent sources .find the nature of illumination at the point if wavelength of light is 5000 A°-5 mark question

Answer»

EXPLANATION:

jsisjwvh wkiwhwv iwbwben iwvvw. js7b KSU

Discussion

3.	E) A particle moves in a straight line such that itsacceleration a varies with speed vasa =-2(v )^1/2 m/s^2, where v is measured in m/s. Ifinitial velocity is 4 m/s, then time taken by theparticle to come to stop is
Answer» GIVEN: Particle moves in a straight line such that it's acceleration "a" VARIES with velocity as $a = - 2 \sqrt{v}$ Initial velocity is 4 m/s To FIND: Time taken by particle to stop. Calculation: Acceleration is defined as the instantaneous rate of change of velocity with respect to time. So , any acceleration vs velocity function can be integrated to get velocity in terms of time. $\therefore \: \: a = - 2 \sqrt{v}$ $= > \dfrac{dv}{dt} = - 2 \sqrt{v}$ $= > \dfrac{dv}{ \sqrt{v} } = - 2 \: dt$ Integrating on both sides : $\displaystyle = > \int \dfrac{dv}{ \sqrt{v} } = - 2 \: \int dt$ Putting the limits: $\displaystyle = > \int_{4}^{0} \dfrac{dv}{ \sqrt{v} } = - 2 \: \int_{0}^{t} dt$ $= > \bigg \{2 {v}^{ \frac{1}{2} } \bigg \}_{4}^{0} = - 2 \bigg \{t \bigg \}_{0}^{t}$ Reversing the limits on LEFT side : $= > \bigg \{2 {v}^{ \frac{1}{2} } \bigg \}_{0}^{4} = 2 \bigg \{t \bigg \}_{0}^{t}$ $= > 2 \times ( {4}^{ \frac{1}{2} } - 0)= 2 t$ $= > 2t = 2 \times 2$ $= > t = 2 \: sec$ So , final answer is : Car will stop after 2 SECONDS.

3.

E) A particle moves in a straight line such that itsacceleration a varies with speed vasa =-2(v )^1/2 m/s^2, where v is measured in m/s. Ifinitial velocity is 4 m/s, then time taken by theparticle to come to stop is

Answer»

GIVEN:

Particle moves in a straight line such that it's acceleration "a" VARIES with velocity as

$a = - 2 \sqrt{v}$

Initial velocity is 4 m/s

Calculation:

Acceleration is defined as the instantaneous rate of change of velocity with respect to time. So , any acceleration vs velocity function can be integrated to get velocity in terms of time.

$\therefore \: \: a = - 2 \sqrt{v}$

$= > \dfrac{dv}{dt} = - 2 \sqrt{v}$

$= > \dfrac{dv}{ \sqrt{v} } = - 2 \: dt$

Integrating on both sides :

$\displaystyle = > \int \dfrac{dv}{ \sqrt{v} } = - 2 \: \int dt$

Putting the limits:

$\displaystyle = > \int_{4}^{0} \dfrac{dv}{ \sqrt{v} } = - 2 \: \int_{0}^{t} dt$

$= > \bigg \{2 {v}^{ \frac{1}{2} } \bigg \}_{4}^{0} = - 2 \bigg \{t \bigg \}_{0}^{t}$

Reversing the limits on LEFT side :

$= > \bigg \{2 {v}^{ \frac{1}{2} } \bigg \}_{0}^{4} = 2 \bigg \{t \bigg \}_{0}^{t}$

$= > 2 \times ( {4}^{ \frac{1}{2} } - 0)= 2 t$

$= > 2t = 2 \times 2$

$= > t = 2 \: sec$

So , final answer is :

Car will stop after 2 SECONDS.

Discussion

4.	A particle is executing linear simple harmonic motion of amplitudea. Waht fraction of the total energy is kinetic when the displacement is half the amplitude
Answer» Answer: 3mw^2 A^2 \8 Explanation: USE DEFINITION of SHM

4.

A particle is executing linear simple harmonic motion of amplitudea. Waht fraction of the total energy is kinetic when the displacement is half the amplitude

Answer»

Answer:

3mw^2 A^2 \8

Explanation:

USE DEFINITION of SHM

Discussion

5.	An object is travelling in a circular path of radius 7cm.It makes 5 rotations. Calculate the disance and magnitude of displacement of the object
Answer» DISPLACEMENT = 0 Distance = 43.96 coz we have to FIND the CIRCUMFERENCE of the CIRCLE.

5.

An object is travelling in a circular path of radius 7cm.It makes 5 rotations. Calculate the disance and magnitude of displacement of the object

Answer»

DISPLACEMENT = 0

Distance = 43.96

coz we have to FIND the CIRCUMFERENCE of the CIRCLE.

Discussion

6.	How to find equivalent resistance in a circle branch?
Answer» EXPLANATION: The sum of the currents through each path is equal to the total current that flows from the source. You can find total resistance in a Parallel circuit with the FOLLOWING FORMULA: 1/Rt = 1/R1 + 1/R2 + 1/R3 +... Rt = R (t)OTAL.

6.

How to find equivalent resistance in a circle branch?

Answer»

EXPLANATION:

The sum of the currents through each path is equal to the total current that flows from the source. You can find total resistance in a Parallel circuit with the FOLLOWING FORMULA: 1/Rt = 1/R1 + 1/R2 + 1/R3 +... Rt = R (t)OTAL.

Discussion

7.	How much maximum gain is best for microstrip antenna?
Answer» In telecommunication, a microstrip antenna USUALLY means an antenna FABRICATED ... A single PATCH antenna provides a maximum DIRECTIVE gain of around 6-9 dBi.

7.

How much maximum gain is best for microstrip antenna?

Answer»

In telecommunication, a microstrip antenna USUALLY means an antenna FABRICATED ... A single PATCH antenna provides a maximum DIRECTIVE gain of around 6-9 dBi.

Discussion

8.	How much energy is released by oscillating charges?
Answer» $\huge\bold{HEY:)-}$ ============ ⭐⭐⭐⭐⭐⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ❤❤❤⭐⭐⭐⭐ $\\ \\ \\ \\ \\$ Electromagnetic waves can be PRODUCED by accelerating charges. Moving charges PRODUCE both electric and MAGNETIC fields. An oscillating charge PRODUCES oscillating magnetic and electric fields. ⤵⤵⤵⤵ FOLLOW , BRAINLIST ME☺☺PLZZ

8.

How much energy is released by oscillating charges?

Answer»

$\huge\bold{HEY:)-}$

============

⭐⭐⭐⭐⭐⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ❤❤❤⭐⭐⭐⭐ $\\ \\ \\ \\ \\$

Electromagnetic waves can be PRODUCED by accelerating charges. Moving charges PRODUCE both electric and MAGNETIC fields. An oscillating charge PRODUCES oscillating magnetic and electric fields.

⤵⤵⤵⤵

FOLLOW , BRAINLIST ME☺☺PLZZ

Discussion

9.	Explain transverse waves and longitudinal waves
Answer» Answer: degrees are WRITTEN generally outside every map and North- south west , east lines can be drawn to get exact degree of the LONGITUDINAL latitudinal location of concerned state to which they belong Ist is worked out by contrasting NORTHWARD or southward location of the concerned state we can know it's exact time ist is five and a half hour ahead of Greenwich mean time GMT 8.30AM the ist will 2.00pm there difference of about two hours in local ARUNACHAL Pradesh but it will STILL night

9.

Explain transverse waves and longitudinal waves

Answer»

Answer:

degrees are WRITTEN generally outside every map and North- south west , east lines can be drawn to get exact degree of the LONGITUDINAL latitudinal location of concerned state to which they belong Ist is worked out by contrasting NORTHWARD or southward location of the concerned state we can know it's exact time ist is five and a half hour ahead of Greenwich mean time GMT 8.30AM the ist will 2.00pm there difference of about two hours in local ARUNACHAL Pradesh but it will STILL night

Discussion

10.	An object is moving along a straight road and covers 500 meters in 10 sec. It returns from there and reaches the straight point in 10 sec. Calculate speed and velocity for the whole journey
Answer» EXPLANATION: MARKED as BRAINLIEST..... FOLLOW me

10.

An object is moving along a straight road and covers 500 meters in 10 sec. It returns from there and reaches the straight point in 10 sec. Calculate speed and velocity for the whole journey

Answer»

EXPLANATION:

MARKED as BRAINLIEST.....

FOLLOW me

Discussion

11.	Travelling?o 12 What is the difference between 'distance travelled by the body and its 'displacement ? Explain with the helpof diagram
Answer» ANSWER: DISTANCE travelled by body means the PATH covered by body in a GIVEN time and DISPLACEMENT is the path covered by body in particular direction in a given time

11.

Travelling?o 12 What is the difference between 'distance travelled by the body and its 'displacement ? Explain with the helpof diagram

Answer»

ANSWER:

DISTANCE travelled by body means the PATH covered by body in a GIVEN time

and DISPLACEMENT is the path covered by body in particular direction

in a given time

Discussion

12.	The distance-time graph for two objects A and B isshown in the figure. a) which object has higher speed why?
Answer» Answer: Where is the graph I can't SEE that please send

12.

The distance-time graph for two objects A and B isshown in the figure. a) which object has higher speed why?

Answer»

Answer:

Where is the graph I can't SEE that please send

Discussion

13.	What is relativity ?what is event horizon?
Answer» Answer the dependence of various physical phenomena on relative MOTION of the observer and the observed objects, especially regarding the NATURE and BEHAVIOR of light, space, time, and gravity. 2. a theoretical BOUNDARY around a BLACK hole beyond which no light or other radiation can escape. a point of no return. Explanation:

13.

What is relativity ?what is event horizon?

Answer»

Answer

the dependence of various physical phenomena on relative MOTION of the observer and the observed objects, especially regarding the NATURE and BEHAVIOR of light, space, time, and gravity.

2. a theoretical BOUNDARY around a BLACK hole beyond which no light or other radiation can escape.

a point of no return.

Explanation:

Discussion

14.	A vector of magnitude 10 Newton acting in xy plane has component 8 Newton and 6 Newton along positive x axis and positive y-axis respectively the co-ordinate system is rotated about Z Axis through an angle 90 degree in anticlockwise direction find X component and Y component in new co-ordinate system
Answer» ANSWER: Explanation X》 6N Y》 -8N

14.

A vector of magnitude 10 Newton acting in xy plane has component 8 Newton and 6 Newton along positive x axis and positive y-axis respectively the co-ordinate system is rotated about Z Axis through an angle 90 degree in anticlockwise direction find X component and Y component in new co-ordinate system

Answer»

ANSWER:

Explanation

X》 6N

Y》 -8N

Discussion

15.	Abody of mass 2 kg moves vertically downwardswith an acceleration a = 19.6 m/s2. The force actingon the body simultaneously with the force of gravityis (g 9,8 m/s, neglect air resistance)
Answer» Answer: 19.6 NEWTON EXPLANATION: USE newton's LAW of MOTION

15.

Abody of mass 2 kg moves vertically downwardswith an acceleration a = 19.6 m/s2. The force actingon the body simultaneously with the force of gravityis (g 9,8 m/s, neglect air resistance)

Answer»

Answer:

19.6 NEWTON

EXPLANATION:

USE newton's LAW of MOTION

Discussion

16.	Image formation by a concave mirror with object b/w pole and focus with diagramplzz its urgent !!!
Answer» CHECK here UR ANSWER .......... MARK me

16.

Image formation by a concave mirror with object b/w pole and focus with diagramplzz its urgent !!!

Answer»

CHECK here UR ANSWER

..........

MARK me

Discussion

17.	A wire is stretched to double its length. how will its resistance change?
Answer» Answer: As a wire gets LONGER its resistance increases, and as it gets thinner its resistance also increases because its cross SECTIONAL AREA decreases. Doubling the length will double the resistance, but the wire also must GET thinner as it is stretched, because it will CONTAIN the same amount of metal in twice the length.

17.

A wire is stretched to double its length. how will its resistance change?

Answer»

Answer:

As a wire gets LONGER its resistance increases, and as it gets thinner its resistance also increases because its cross SECTIONAL AREA decreases. Doubling the length will double the resistance, but the wire also must GET thinner as it is stretched, because it will CONTAIN the same amount of metal in twice the length.

Discussion

18.	नाभिकीय स्केल पर लंबाई का सुविधाजनक मात्रक क्या है
Answer» ANSWER: Scale Explanation: Becuse it MAKE EASY for MEASUREMENT

18.

नाभिकीय स्केल पर लंबाई का सुविधाजनक मात्रक क्या है

Answer»

ANSWER:

Scale

Explanation:

Becuse it MAKE EASY for MEASUREMENT

Discussion

19.	some iron nails and screws got mixed with the wood shavings while a carpenter was working with them how can you help him in getting the nails and screws back from the wood shavings without wasting his time in searching with is hand
Answer» ANSWER: Iron nails have a property to get attracted TOWARDS a magnet. The CARPENTER can get the nails and SCREWS separated from the wood shavings WITHOUT wasting time by simply using a magnet.

19.

some iron nails and screws got mixed with the wood shavings while a carpenter was working with them how can you help him in getting the nails and screws back from the wood shavings without wasting his time in searching with is hand

Answer»

ANSWER:

Iron nails have a property to get attracted TOWARDS a magnet. The CARPENTER can get the nails and SCREWS separated from the wood shavings WITHOUT wasting time by simply using a magnet.

Discussion

20.	A particle is at rest at t = 0. If acceleration of theparticle is given as a = sinnt + cositt, in Sl units,then the maximum speed of particle is
Answer» A particle is at rest at t = 0, means, initial velocity of particle , u = 0 now ACCELERATION of the particle is given as, $\bf{a=sin\pi t+cos\pi t}$ we KNOW, acceleration is the RATE of change of velocity with respect to time. so, a = dv/dt = sinπt + cosπt or, $\int\limits^v_0{dv}=\int\limits^t_0{(sin\pi t+cos\pi t)}\,dt$ or, V = -1/π(cosπt + sinπt) = sinπt - cosπt = √2/π [ 1/√2 × sinπt - 1/√2 × cosπt ] = √2/π [ cosπ/4 × sinπt - sinπ/4 × cosπt ] we know formula, sinA.cosB - cosA.sinB = sin(A - B) so, cosπ/4 × sinπt - sinπ/4 × cosπt = sin(πt - π/4) then, v = √2/πsin(πt - π/4) hence, maximum VALUE of v will be √2/π m/s. hence, maximum speed of particle is √2/π m/s.

20.

A particle is at rest at t = 0. If acceleration of theparticle is given as a = sinnt + cositt, in Sl units,then the maximum speed of particle is

Answer»

A particle is at rest at t = 0,

means, initial velocity of particle , u = 0

now ACCELERATION of the particle is given as, $\bf{a=sin\pi t+cos\pi t}$

we KNOW, acceleration is the RATE of change of velocity with respect to time.

so, a = dv/dt = sinπt + cosπt

or, $\int\limits^v_0{dv}=\int\limits^t_0{(sin\pi t+cos\pi t)}\,dt$

or, V = -1/π(cosπt + sinπt)

= sinπt - cosπt

= √2/π [ 1/√2 × sinπt - 1/√2 × cosπt ]

= √2/π [ cosπ/4 × sinπt - sinπ/4 × cosπt ]

we know formula, sinA.cosB - cosA.sinB = sin(A - B)

so, cosπ/4 × sinπt - sinπ/4 × cosπt = sin(πt - π/4)

then, v = √2/πsin(πt - π/4)

hence, maximum VALUE of v will be √2/π m/s.

hence, maximum speed of particle is √2/π m/s.

Discussion

21.	a train starting from rest travels with uniform acceleration and attains a velocity of 60 kilometre per hour in two minutes ( answer per kilometre)
Answer» Answer: Acceleration is 1800 km/he SQUARE Explanation: USE EQUATION of motions

21.

a train starting from rest travels with uniform acceleration and attains a velocity of 60 kilometre per hour in two minutes ( answer per kilometre)

Answer»

Answer:

Acceleration is 1800 km/he SQUARE

Explanation:

USE EQUATION of motions

Discussion

22.	Answers all this question
Answer» ANSWER: PLZZ CLEAR IMAGE.......

22.

Answers all this question

Answer»

ANSWER:

PLZZ CLEAR IMAGE.......

Discussion

23.	(a) 21 s (b) 29 s (c) 31 s (d) 41 sThe position x of a particle varies with time t asx = 6 + 12t - 2t2 where x is in metre and t in seconds.The distance travelled by the particle in first five seconds(a) 16 m(b) 26 m(c) 10 m(d) 36 m
Answer» ANSWER: (C) EXPLANATION:

23.

(a) 21 s (b) 29 s (c) 31 s (d) 41 sThe position x of a particle varies with time t asx = 6 + 12t - 2t2 where x is in metre and t in seconds.The distance travelled by the particle in first five seconds(a) 16 m(b) 26 m(c) 10 m(d) 36 m

Answer»

ANSWER:

(C)

EXPLANATION:

Discussion

24.	What is the nature of magnetic field produced by a straight current carrying conductor? Explain with the help of a experiment.
Answer» ANSWER: it can be 99.5%WRITE ACCORDING to me.

24.

What is the nature of magnetic field produced by a straight current carrying conductor? Explain with the help of a experiment.

Answer»

ANSWER:

it can be 99.5%WRITE ACCORDING to me.

Discussion

25.	Parker going due north at 20 root 2 metre per second turns right through an angle of 90 degree without changing Speed the change in velocity of car is
Answer» Answer: Explanation: The change in VELOCITY of CAR is 20 metre PER second in south east direction

25.

Parker going due north at 20 root 2 metre per second turns right through an angle of 90 degree without changing Speed the change in velocity of car is

Answer»

Answer:

Explanation:

The change in VELOCITY of CAR is 20 metre PER second in south east direction

Discussion

26.	In the experiment with a double inclined plane, a ball is released from a height 'X' on one plane. The planes are frictionless, What will be the final position of the ball ?
Answer» ANSWER: from which class it is PLEASE tell me then I will answer your QUESTION in the comment box

26.

In the experiment with a double inclined plane, a ball is released from a height 'X' on one plane. The planes are frictionless, What will be the final position of the ball ?

Answer»

ANSWER:

from which class it is PLEASE tell me then I will answer your QUESTION in the comment box

Discussion

27.	you are going to delhi by car. you look at milestone saying,"Delhi 5km" at sharp 6 p.m. At 6:05, you see a milestone saying, "Delhi 1km away''. Find the speed of your car in km/minute
Answer» Answer: 1 km / minute Explanation : Here at 6 p.m delhi is 5 km away. Then, 6:05p.m delhi is 1 km away means after 5 MINUTES the CAR had crossed 5 km. The car TAKE 1 minute to cross 1 km. Means the speed of car= 1 km / minute HOPE it helps

27.

you are going to delhi by car. you look at milestone saying,"Delhi 5km" at sharp 6 p.m. At 6:05, you see a milestone saying, "Delhi 1km away''. Find the speed of your car in km/minute

Answer»

Answer:

1 km / minute

Explanation :

Here at 6 p.m delhi is 5 km away. Then, 6:05p.m delhi is 1 km away means after 5 MINUTES the CAR had crossed 5 km. The car TAKE 1 minute to cross 1 km. Means the speed of car= 1 km / minute

HOPE it helps

Discussion

28.	What is the formula of elasticity
Answer» ANSWER: ELASTICITY =STRESS /srain Explanation:

28.

What is the formula of elasticity

Answer»

ANSWER:

ELASTICITY =STRESS /srain

Explanation:

Discussion

29.	a train starting from rest travels with uniform acceleration and attached a velocity of 60 kilometre per hour in two minutes (answer per kilometre) .
Answer» Answer: jai BAJRANG BALI jai Mahal KALI

29.

a train starting from rest travels with uniform acceleration and attached a velocity of 60 kilometre per hour in two minutes (answer per kilometre) .

Answer»

Answer:

jai BAJRANG BALI jai Mahal KALI

Discussion

30.	Explain the relation between physcis and techonology society answer
Answer» Answer:Physics is the FUNDAMENTAL of all technologies in the PHYSICAL world.They are related to each other at every aspect as we want a better technology to speed up the TRAINS so we have to follow the basic rules of physics ,even in space technology ,Rocket and satellite launching ONE have to study the physical environment . Explanation:

30.

Explain the relation between physcis and techonology society answer

Answer»

Answer:Physics is the FUNDAMENTAL of all technologies in the PHYSICAL world.They are related to each other at every aspect as we want a better technology to speed up the TRAINS so we have to follow the basic rules of physics ,even in space technology ,Rocket and satellite launching ONE have to study the physical environment .

Explanation:

Discussion

31.	Angle of depression of foot of the building from top of the tower 30 m away is 30 degree. What is the height of the building
Answer» ANSWER: Wrong Question! Explanation: There is ACTUALLY no way to find out HEIGHT of the BUILDING! With this INFO!

31.

Angle of depression of foot of the building from top of the tower 30 m away is 30 degree. What is the height of the building

Answer»

ANSWER:

Wrong Question!

Explanation:

There is ACTUALLY no way to find out HEIGHT of the BUILDING! With this INFO!

Discussion

32.	Solve this condo is no no mq in
Answer» ANSWER: PIC bilkol Explanation: clear NAHI HAI

32.

Solve this condo is no no mq in

Answer»

ANSWER:

PIC bilkol

Explanation:

clear NAHI HAI

Discussion

33.	An electric lamp has resistance of 400 ohms. It is connected to a supply of 250V . If the price of electric energy is Rs 1.20 per unit , calculate the cost of lighting the lamp for 20 hours .
Answer» ANSWER: an electric lamp has resistance of 300 words it is a connector SUPPLY 200 volt is the PRICE of electric energy 100 unit calculate the cost of lighting the lamp for 24 hours

33.

An electric lamp has resistance of 400 ohms. It is connected to a supply of 250V . If the price of electric energy is Rs 1.20 per unit , calculate the cost of lighting the lamp for 20 hours .

Answer»

ANSWER:

an electric lamp has resistance of 300 words it is a connector SUPPLY 200 volt is the PRICE of electric energy 100 unit calculate the cost of lighting the lamp for 24 hours

Discussion

34.	2. State two applications of conduction.
Answer» Conduction heat transfer examples and applications. “The mode of transfer of heat by vibrating atoms and free electrons in solids from HOT to COLD parts of a body is called conduction of heat.”Radiator is an GOOD example of conduction heat transfer. The handle of the METAL spoon held in hot WATER soon gets warm.

Discussion

35.	3. A spherical mirror is to be used to form on a screen 5.0 m from the object an image five times thesize of the object.(a) Describe the type of mirror required.(b) Where should the mirror be positioned relative to the object?Pina cholenraveandbeing reflected
Answer» EXPLANATION: CONCAVE jdjdidjjxjxhxhzbdbneksi

35.

3. A spherical mirror is to be used to form on a screen 5.0 m from the object an image five times thesize of the object.(a) Describe the type of mirror required.(b) Where should the mirror be positioned relative to the object?Pina cholenraveandbeing reflected

Answer»

EXPLANATION:

CONCAVE jdjdidjjxjxhxhzbdbneksi

Discussion

36.	State and explain the law of refraction of light with the help of a lebelled diagram.
Answer» Explanation: when light PASSES from rarer MEDIUM to denser medium it passes go on and when light passes through denser medium to rarer medium from AWAY from the normal LINE

36.

State and explain the law of refraction of light with the help of a lebelled diagram.

Answer»

Explanation:

when light PASSES from rarer MEDIUM to denser medium it passes go on and when light passes through denser medium to rarer medium from AWAY from the normal LINE

Discussion

37.	Describe youngs experiment to obtain steady interference pattern -3 mark question
Answer» ANSWER: HEYA MATE UR answer is in ATTACHMENT to

37.

Describe youngs experiment to obtain steady interference pattern -3 mark question

Answer»

ANSWER:

HEYA MATE UR answer is in ATTACHMENT to

Discussion

38.	Two forces whose magnitudes are in the ratio 3 : 5 give a resultant of 28 N if the angle between themis 60°, then the magnitude of the two forces are:
Answer» Answer: 12 Newton and 20 Newton EXPLANATION: RESOLVE VECTORS in perpendicular direction and solve

38.

Two forces whose magnitudes are in the ratio 3 : 5 give a resultant of 28 N if the angle between themis 60°, then the magnitude of the two forces are:

Answer»

Answer:

12 Newton and 20 Newton

EXPLANATION:

RESOLVE VECTORS in perpendicular direction and solve

Discussion

39.	what is the amount of work done in moving a 100nC charge between two points 5cm apart on a equipotential surface
Answer» Answer: Work done is zero. Because it is an EQUIPOTENTIAL SURFACE which MEANS that the potential is same at every point on the surface. Hope it helps PLEASE MARK as brainliest Explanation:

39.

what is the amount of work done in moving a 100nC charge between two points 5cm apart on a equipotential surface

Answer»

Answer:

Work done is zero.

Because it is an EQUIPOTENTIAL SURFACE which MEANS that the potential is same at every point on the surface.

Hope it helps PLEASE MARK as brainliest

Explanation:

Discussion

40.	a body starts from rest and moves with a uniform acceleration of 4m/s2 until it travels a distance of 800m, find the final velocity?
Answer» ANSWER: Your answer is below: EXPLANATION: a=4m/s2 s=800m u=0m/s2 s =ut+1/2at2 800=0+1/24t2 800=2t2 400=t2 t=20s a=(v-u)/t 4=v-0/20 80=v v=80m/s

40.

a body starts from rest and moves with a uniform acceleration of 4m/s2 until it travels a distance of 800m, find the final velocity?

Answer»

ANSWER:

Your answer is below:

EXPLANATION:

a=4m/s2

s=800m

u=0m/s2

s =ut+1/2at2

800=0+1/2*4*t2

800=2t2

400=t2

t=20s

a=(v-u)/t

4=v-0/20

80=v

v=80m/s

Discussion

41.	a stone is doppped from a top of abuilding 122.5 metre high after 1 sec another stone is thrown downwords such that the both of them hits the ground simultaneously calculate thier time fall and velocity with which they hits the ground
Answer» Answer: TIME of fall is APPROX 2.94s Explanation: USE EQUATION of motions

41.

a stone is doppped from a top of abuilding 122.5 metre high after 1 sec another stone is thrown downwords such that the both of them hits the ground simultaneously calculate thier time fall and velocity with which they hits the ground

Answer»

Answer:

TIME of fall is APPROX 2.94s

Explanation:

USE EQUATION of motions

Discussion

42.	In which of the following system will the radius of the first bohr Orbit be minimum
Answer» ANSWER: dedwdas Explanation:

42.

In which of the following system will the radius of the first bohr Orbit be minimum

Answer»

ANSWER:

dedwdas

Explanation:

Discussion

43.	17.18.length 10cm. What is the total electric Tux unruusu me vonIf the radius of the Gaussian surface enclosing a charge is halved , how does theelectric flux through the Gaussian surface change ?Does the charge outside the Gaussian surface contribute to total electric flux ?Is electric flux a scalar or a vector ?Force between two point electric charges kept at a distance d apart in air is F. Ifthese charges are kept at the same distance in water, how does the force betweenthem change?In a medium, the force of attraction between two point electric charges, distance dapart, is F. What distance apart should these be kept in the same medium so that tforce between them becomes 3F?Name & define the physical quantity whose SI unit is C/V.What is the amount of work done in moving a 100nC charge between two points5cm apart on an equipotential surface?Define the term electric dipole moment of a dipole. State its S.I. Unit.21.22.23.24.2 Marks Questions:Give atleast four properties of electric charge.A particle of mass 2x10-3 kg. and charge 2uc enters into a uniform electric field o5x10N/C, moving with a velocity of 10 m/s in a direction opposite to that of thecalculate the distance it would travel before coming to rest
Answer» 17. 18. length 10cm. What is the total electric Tux unruusu me von If the radius of the Gaussian surface enclosing a charge is halved , how does the electric flux through the Gaussian surface change ? Does the charge outside the Gaussian surface contribute to total electric flux ? Is electric flux a scalar or a VECTOR ? Force between two point electric CHARGES kept at a DISTANCE d apart in air is F. If these charges are kept at the same distance in water, how does the force between them change? In a medium, the force of attraction between two point electric charges, distance d apart, is F. What distance apart should these be kept in the same medium so that t force between them becomes 3F? Name & define the physical quantity whose SI unit is C/V. What is the amount of work done in moving a 100nC charge between two points 5cm apart on an equipotential surface? Define the term electric dipole moment of a dipole. State its S.I. Unit. 21. 22. 23. 24. 2 Marks Questions: Give atleast four properties of electric charge. A particle of mass 2x10-3 KG. and charge 2uc enters into a uniform electric field o 5x10N/C, moving with a velocity of 10 m/s in a direction opposite to that of the calculate the distance it WOULD travel before coming to rest

43.

17.18.length 10cm. What is the total electric Tux unruusu me vonIf the radius of the Gaussian surface enclosing a charge is halved , how does theelectric flux through the Gaussian surface change ?Does the charge outside the Gaussian surface contribute to total electric flux ?Is electric flux a scalar or a vector ?Force between two point electric charges kept at a distance d apart in air is F. Ifthese charges are kept at the same distance in water, how does the force betweenthem change?In a medium, the force of attraction between two point electric charges, distance dapart, is F. What distance apart should these be kept in the same medium so that tforce between them becomes 3F?Name & define the physical quantity whose SI unit is C/V.What is the amount of work done in moving a 100nC charge between two points5cm apart on an equipotential surface?Define the term electric dipole moment of a dipole. State its S.I. Unit.21.22.23.24.2 Marks Questions:Give atleast four properties of electric charge.A particle of mass 2x10-3 kg. and charge 2uc enters into a uniform electric field o5x10N/C, moving with a velocity of 10 m/s in a direction opposite to that of thecalculate the distance it would travel before coming to rest

Answer»

17.

18.

length 10cm. What is the total electric Tux unruusu me von

If the radius of the Gaussian surface enclosing a charge is halved , how does the

electric flux through the Gaussian surface change ?

Does the charge outside the Gaussian surface contribute to total electric flux ?

Is electric flux a scalar or a VECTOR ?

Force between two point electric CHARGES kept at a DISTANCE d apart in air is F. If

these charges are kept at the same distance in water, how does the force between

them change?

In a medium, the force of attraction between two point electric charges, distance d

apart, is F. What distance apart should these be kept in the same medium so that t

force between them becomes 3F?

Name & define the physical quantity whose SI unit is C/V.

What is the amount of work done in moving a 100nC charge between two points

5cm apart on an equipotential surface?

Define the term electric dipole moment of a dipole. State its S.I. Unit.

21.

22.

23.

24.

2 Marks Questions:

Give atleast four properties of electric charge.

A particle of mass 2x10-3 KG. and charge 2uc enters into a uniform electric field o

5x10N/C, moving with a velocity of 10 m/s in a direction opposite to that of the

calculate the distance it WOULD travel before coming to rest

Discussion

44.	Its important plz help me....
Answer» ANSWER: pls TAKE the clear PIC I couldn't ABLE to see your questions

44.

Its important plz help me....

Answer»

ANSWER:

pls TAKE the clear PIC I couldn't ABLE to see your questions

Discussion

45.	An engine has a clearance volume of 100 cm and a swept volume of 800 cm. The compression ratio is
Answer» Answer: 9:1 Explanation: 100+800/100 = 9:1.

45.

An engine has a clearance volume of 100 cm and a swept volume of 800 cm. The compression ratio is

Answer»

Answer:

9:1

Explanation:

100+800/100 = 9:1.

Discussion

46.	Does observation affects the interference of light
Answer» ANSWER: No Explanation: Interference like that of YOUNGS double slit EXPERIMENT are not affected

46.

Does observation affects the interference of light

Answer»

ANSWER:

No

Explanation:

Interference like that of YOUNGS double slit EXPERIMENT are not affected

Discussion

47.	Does increase in moment of inertia increases torque
Answer» no,they are INVERSELY RELATED

47.

Does increase in moment of inertia increases torque

Answer»

no,they are INVERSELY RELATED

Discussion

48.	How can the electric field intensity can be maximum?
Answer» Answer: Electric field STRENGTH is a vector QUANTITY; it has both magnitude and direction. The magnitude of the electric field strength is defined in terms of how it is measured. LET's suppose that an electric CHARGE can be denoted by the symbol Q. This electric charge creates an electric field; since Q is the source of the electric field, we will refer to it as the source charge. The strength of the source charge's electric field could be measured by any other charge placed somewhere in its surroundings.

48.

How can the electric field intensity can be maximum?

Answer»

Answer:

Electric field STRENGTH is a vector QUANTITY; it has both magnitude and direction. The magnitude of the electric field strength is defined in terms of how it is measured. LET's suppose that an electric CHARGE can be denoted by the symbol Q. This electric charge creates an electric field; since Q is the source of the electric field, we will refer to it as the source charge. The strength of the source charge's electric field could be measured by any other charge placed somewhere in its surroundings.

Discussion

49.	Explain converging nature of concave mirror
Answer» (i) object - at INFINITY (II) position of image - at focus (III)SIZE of images - highly diminished (iv) NATURE - virtual and erect Hope so this answer helps you!!

49.

Explain converging nature of concave mirror

Answer»

(i) object - at INFINITY

(II) position of image - at focus

(III)SIZE of images - highly diminished

(iv) NATURE - virtual and erect

Hope so this answer helps you!!

Discussion

50.	How can one minimise the errors in the measurements?
Answer» ANSWER: Double check all measurements for accuracy. For example, double-enter all inputs on two worksheets and compare them. Double check your formulas are correct. Make sure OBSERVERS and measurement TAKERS are well trained. Make the measurement with the instrument that has the highest precision. Take the measurements under controlled conditions. Pilot test your measuring instruments. For example, put together a focus group and ask how easy or difficult the questions were to understand. Use multiple measures for the same construct. For example, if you are TESTING for depression, use two different QUESTIONNAIRES.

50.

How can one minimise the errors in the measurements?

Answer»

ANSWER:

Double check all measurements for accuracy. For example, double-enter all inputs on two worksheets and compare them.

Double check your formulas are correct.

Make sure OBSERVERS and measurement TAKERS are well trained.

Make the measurement with the instrument that has the highest precision.

Take the measurements under controlled conditions.

Pilot test your measuring instruments. For example, put together a focus group and ask how easy or difficult the questions were to understand.

Use multiple measures for the same construct. For example, if you are TESTING for depression, use two different QUESTIONNAIRES.

Discussion

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