67486 + Interview Questions in Secondary School in Physics

1.	Obtain expression for induced emf in a coil by changing the area enclosed by it
Answer» ANSWER: SEE the ATTACHMENT, and GET the ANS

1.

Obtain expression for induced emf in a coil by changing the area enclosed by it

Answer»

ANSWER:

SEE the ATTACHMENT, and GET the ANS

Discussion

2.	Find the value of resistance connected in a series with a bulb 60watt, 30 volt to run on 90volt supply
Answer» Explanation: resistance of is P = V²/ R R = V²/P = ( 30x 30)/60 = 15 ohm if applied VOLTAGE is 90v then pd across bulb is V = IR 30 = I X 15 I = 30/15 = 2A thus pd across a resistor which is connected with bulb in order to DROP only 30 v across bulb. V = I x r 60 = 2 x r r = 30OHM

2.

Find the value of resistance connected in a series with a bulb 60watt, 30 volt to run on 90volt supply

Answer»

Explanation:

resistance of is

P = V²/ R

R = V²/P = ( 30x 30)/60 = 15 ohm

if applied VOLTAGE is 90v

then pd across bulb is

V = IR

30 = I X 15

I = 30/15 = 2A

thus pd across a resistor which is connected with bulb in order to DROP only 30 v across bulb.

V = I x r

60 = 2 x r

r = 30OHM

Discussion

3.	Loss of electrons occurs whereduring elctrolysis process
Answer» Answer: REDUCTION happens at the NEGATIVE CATHODE because this is where positive IONS gain electrons. Oxidation happens at the positive anode because this is where negative ions lose electrons.

3.

Loss of electrons occurs whereduring elctrolysis process

Answer»

Answer:

REDUCTION happens at the NEGATIVE CATHODE because this is where positive IONS gain electrons. Oxidation happens at the positive anode because this is where negative ions lose electrons.

Discussion

4.	A certain spring hangs vertically. When a body of mass M=1.75 kg is suspended from it, its length increases by 6.2 cm. The spring is then mounted horizontally, and a block of mass m=2.22kg is attached to the spring. The block is free to slide along a frictionless horizontal surface, as shown in figure below.(a) What is the force constant k of the spring?(b) What is the magnitude of the horizontal force required to stretch the spring by a distance of 10.5 cm and released, with what period will it oscillate?Hint: For spring constant in the present case, use the relation that the restoring force in vertical case is equal to
Answer» I THINK so It is CORRECT I HOPE it is usefull

Discussion

5.	Discuss the effect of output power on efficiency and regulation in OC and SC test
Answer» ANSWER: Open Circuit or No Load Test on TRANSFORMER Since this test is carried out by without placing any load, this test is also named as no load test. The OC test is carried out by CONNECTING LV side (as primary) of the transformer to the AC supply through variac, ammeter and wattmeter INSTRUMENTS.

5.

Discuss the effect of output power on efficiency and regulation in OC and SC test

Answer»

ANSWER:

Open Circuit or No Load Test on TRANSFORMER Since this test is carried out by without placing any load, this test is also named as no load test. The OC test is carried out by CONNECTING LV side (as primary) of the transformer to the AC supply through variac, ammeter and wattmeter INSTRUMENTS.

Discussion

6.	When light travels from a cold air to hot air obliquely. What happen to the speed and howdoes it change its path?
Answer» What happens is that light slows down when it passes from the less DENSE air into the denser glass or water. This SLOWING down of the RAY of light also causes the ray of light to CHANGE direction. It is the change in the SPEED of the light that causes refraction.

6.

When light travels from a cold air to hot air obliquely. What happen to the speed and howdoes it change its path?

Answer»

What happens is that light slows down when it passes from the less DENSE air into the denser glass or water. This SLOWING down of the RAY of light also causes the ray of light to CHANGE direction. It is the change in the SPEED of the light that causes refraction.

Discussion

7.	U.20IVIA 750 Newton diver dropafrom a board 10.0 metersabove the water's surfaceA. Find the diver's speed 4.00meters above the water'ssurfaceB. Find the diver's speed justbefore striking the water.
Answer» ANSWER: ID 708 716 2341 Pas 123456

7.

U.20IVIA 750 Newton diver dropafrom a board 10.0 metersabove the water's surfaceA. Find the diver's speed 4.00meters above the water'ssurfaceB. Find the diver's speed justbefore striking the water.

Answer»

ANSWER:

ID 708 716 2341

Pas 123456

Discussion

8.	Derive an expression for the acceptance angle and numerical apertureof an optical fiber with core and cladding refractive indices being niand 12. Assume that it has been placed in a medium with refractiveindex no
Answer» Answer: Definition: Numerical Aperture is the measure of the ABILITY of an optical fiber to collect or confine the incident light ray inside it. It is among the most basic property of optical fiber. derivation of Aperture of Optical Fiber Consider a light ray XA, that incident inside the optical fiber. The refractive index of the core is ƞ1 and that of CLADDING is ƞ2. The FIGURE below SHOWS an optical fiber inside which light ray is focused. propagation through optical fiber So, the ray XA is launched from denser medium to rarer medium by making an angle α with the fiber axis. This angle α is known as the acceptance angle of the fiber. This incident ray propagates inside the fiber and gets reflected completely by the core-cladding interface. But for this, the angle of the incident should be more as compared to the critical angle. Otherwise, if the incident angle is less the critical angle then rather being reflected, the ray gets refracted According to Snell’s law, the incident and refracted ray propagate in the same plane. Hence, on applying Snell’s law at medium 1 (usually air) and core interface.

8.

Derive an expression for the acceptance angle and numerical apertureof an optical fiber with core and cladding refractive indices being niand 12. Assume that it has been placed in a medium with refractiveindex no

Answer»

Answer:

Definition: Numerical Aperture is the measure of the ABILITY of an optical fiber to collect or confine the incident light ray inside it. It is among the most basic property of optical fiber.

derivation of Aperture of Optical Fiber

Consider a light ray XA, that incident inside the optical fiber. The refractive index of the core is ƞ1 and that of CLADDING is ƞ2.

The FIGURE below SHOWS an optical fiber inside which light ray is focused.

propagation through optical fiber

So, the ray XA is launched from denser medium to rarer medium by making an angle α with the fiber axis. This angle α is known as the acceptance angle of the fiber.

This incident ray propagates inside the fiber and gets reflected completely by the core-cladding interface.

But for this, the angle of the incident should be more as compared to the critical angle. Otherwise, if the incident angle is less the critical angle then rather being reflected, the ray gets refracted

According to Snell’s law, the incident and refracted ray propagate in the same plane. Hence, on applying Snell’s law at medium 1 (usually air) and core interface.

Discussion

9.	A circuit having three resistors (R1) 7.2ohm, (R2) 8ohm and (R3) 12ohm are connected in such away that their resultant resistance is 12. How are they connected?
Answer» EXPLANATION: SORRY I don't KNOW the ANSWER....

9.

A circuit having three resistors (R1) 7.2ohm, (R2) 8ohm and (R3) 12ohm are connected in such away that their resultant resistance is 12. How are they connected?

Answer»

EXPLANATION:

SORRY I don't KNOW the ANSWER....

Discussion

10.	Calculate the refractive index,if the thickness of glass slab is 7cm with vertical shift of 4cm
Answer» ANSWER: how Explanation: OK I HOPE it's RIGHT THANKYOU

10.

Calculate the refractive index,if the thickness of glass slab is 7cm with vertical shift of 4cm

Answer»

ANSWER:

how

Explanation:

OK I HOPE it's RIGHT THANKYOU

Discussion

11.	An object with a higher surface areaa- would emit and absorb more infrared radiationsb- emit more but absorb less infrared radiations c- emit less but absorb more infrared radiationsPLEASE EXPLAIN WHICH CHOICE THEN I'LL MARK BRAINLIEST ONLY!!!!EXPLANATION IS MORE IMPORTANT THAN ANSWER!!!!
Answer» Answer: c EMIT LESS but ABSORB more INFRARED radiation

11.

An object with a higher surface areaa- would emit and absorb more infrared radiationsb- emit more but absorb less infrared radiations c- emit less but absorb more infrared radiationsPLEASE EXPLAIN WHICH CHOICE THEN I'LL MARK BRAINLIEST ONLY!!!!EXPLANATION IS MORE IMPORTANT THAN ANSWER!!!!

Answer»

Answer:

c EMIT LESS but ABSORB more INFRARED radiation

Discussion

12.	I know that the gravity of the moon causes ocean tides on earth.How does centrifugal force cause the far-side bulge?
Answer» The tidal BULGE on the far side of the earth is not caused by centrifugal force. It is caused by the exact same thing the near-side bulge is caused by: the MOON's gravity. Furthermore, tidal effects are not caused by the overall strength of gravity like planetary ORBITS are. Rather, tidal effects are instead caused by gravitational gradients, which are differences in gravity from one point on earth to the next. These differences in the gravitational field arise from the fact that the moon's gravity spreads out into space radially in all directions and weakens with DISTANCE. In FAT, both the sun's and the moon's gravity add together to create the tidal bulges. *Have* a good *day* ❤️

12.

I know that the gravity of the moon causes ocean tides on earth.How does centrifugal force cause the far-side bulge?

Answer»

The tidal BULGE on the far side of the earth is not caused by centrifugal force. It is caused by the exact same thing the near-side bulge is caused by: the MOON's gravity. Furthermore, tidal effects are not caused by the overall strength of gravity like planetary ORBITS are. Rather, tidal effects are instead caused by gravitational gradients, which are differences in gravity from one point on earth to the next. These differences in the gravitational field arise from the fact that the moon's gravity spreads out into space radially in all directions and weakens with DISTANCE. In FAT, both the sun's and the moon's gravity add together to create the tidal bulges.

Have a good day ❤️

Discussion

13.	How does sound pollution effect Biodiverisity? explain
Answer» Answer: Noise pollution can change ANIMAL behavior and even affect their physiology. As a consequence, REDUCED reproductive success, higher mortality and intensified migrations among many animal SPECIES are observed. Such DISORDERS STRONGLY affect biodiversity both within the population and within the ecosystems themselves.

13.

How does sound pollution effect Biodiverisity? explain

Answer»

Answer:

Noise pollution can change ANIMAL behavior and even affect their physiology. As a consequence, REDUCED reproductive success, higher mortality and intensified migrations among many animal SPECIES are observed. Such DISORDERS STRONGLY affect biodiversity both within the population and within the ecosystems themselves.

Discussion

14.	At point p electric field is E1 and E2 due to Q1 and Q2 respectively then
Answer» ANSWER: E1. E2 >0 Explanation: The electric field is calculated by the formula. As both are positive charges, only magnitude of charges and their INDIVIDUAL distance from P are necessary, because they have REPULSIVE interaction. But as Electric field can never be negative, their dot PRODUCT is positive. Thank you

14.

At point p electric field is E1 and E2 due to Q1 and Q2 respectively then

Answer»

ANSWER:

E1. E2 >0

Explanation:

The electric field is calculated by the formula.

As both are positive charges, only magnitude of charges and their INDIVIDUAL distance from P are necessary, because they have REPULSIVE interaction.

But as Electric field can never be negative, their dot PRODUCT is positive.

Thank you

Discussion

15.	A resistance thermometer has resistance 95.2 2 at the ice point and 138.6 at the steam point. What resistance would be obtained if the actual temperature is 27 degrees * C ?
Answer» Answer: R3 = 106.93 OHM at 27 °c Explanation: Using R1 = R2(1+alpha(T1-T2))

15.

A resistance thermometer has resistance 95.2 2 at the ice point and 138.6 at the steam point. What resistance would be obtained if the actual temperature is 27 degrees * C ?

Answer»

Answer:

R3 = 106.93 OHM at 27 °c

Explanation:

Using R1 = R2(1+alpha(T1-T2))

Discussion

16.	A body thrown with velocity of 40 m/s ina direction making an angle of 30°with horizontal calculate a)Horizonted rangeb) Maximum height
Answer» ANSWER: here is your answer ☝️ Explanation: THANK you ❤️

16.

A body thrown with velocity of 40 m/s ina direction making an angle of 30°with horizontal calculate a)Horizonted rangeb) Maximum height

Answer»

ANSWER:

here is your answer ☝️

Explanation:

THANK you ❤️

Discussion

17.	Identify base Quantity of following a) speed b)area c)force d)distance
Answer» EXPLANATION: distance bcz all the other QUANTITIES can be EXPRESSED in TERMS of this

17.

Identify base Quantity of following a) speed b)area c)force d)distance

Answer»

EXPLANATION:

distance

bcz all the other QUANTITIES can be EXPRESSED in TERMS of this

Discussion

18.	In projectile motion after the ball reaches the highest it start to fall down , what happen to the speed?A it decrease B it remains constantC it increaseD it becomes 0
Answer» ANSWER: A. It decreases Explanation: SEE pic. The y component of velocity becomes zero at HIGHEST POINT, but the x component remains the same. So overall it decrease

18.

In projectile motion after the ball reaches the highest it start to fall down , what happen to the speed?A it decrease B it remains constantC it increaseD it becomes 0

Answer»

ANSWER:

A. It decreases

Explanation:

SEE pic.

The y component of velocity becomes zero at HIGHEST POINT, but the x component remains the same. So overall it decrease

Discussion

19.	Define p h what is the range of p h value for acid base
Answer» Answer: pH is DEFINED as the negative LOG of the CONCENTRATION of H+ ions in aqueous state. Range of pH 0 < pH < 14 Please mark me as BRAINLIEST and help me achieve Ace Rank.

19.

Define p h what is the range of p h value for acid base

Answer»

Answer:

pH is DEFINED as the negative LOG of the CONCENTRATION of H+ ions in aqueous state.

Range of pH

0 < pH < 14

Please mark me as BRAINLIEST and help me achieve Ace Rank.

Discussion

20.	Tell above referred attachment ques
Answer» Answer: 60] I) A to B is the INITIAL SPEED of car ii) 35km III) B to C shows 0 acceleration as velocity is constant. iv) C to D shows RETARDATION v) Time=8hours Speed= 35 km/hr Speed=Distance/Time. Distance=Speed×Time Distance=35×8=280km

20.

Tell above referred attachment ques

Answer»

Answer:

60] I) A to B is the INITIAL SPEED of car

ii) 35km

III) B to C shows 0 acceleration as velocity is constant.

iv) C to D shows RETARDATION

v) Time=8hours

Speed= 35 km/hr

Speed=Distance/Time.

Distance=Speed×Time

Distance=35×8=280km

Discussion

21.	In 1610, Galileo Galilei discovered four moons of which planet?
Answer» In 1610, Galileo Galilei DISCOVERED FOUR MOONS of PLANET Jupiter.

21.

In 1610, Galileo Galilei discovered four moons of which planet?

Answer»

In 1610, Galileo Galilei DISCOVERED FOUR MOONS of PLANET Jupiter.

Discussion

22.	two plain mirrors are inclined at the angle of 60° , the number of the images formed for an object placed between the mirror is
Answer» Answer: 5 Explanation: the ANGLE between is 60 DEGREE so the IMAGES will be 5

22.

two plain mirrors are inclined at the angle of 60° , the number of the images formed for an object placed between the mirror is

Answer»

Answer:

5

Explanation:

the ANGLE between is 60 DEGREE so the IMAGES will be 5

Discussion

23.	A car travels at a speed of 50km/h for 30min , at 30km/h for the next 15min and thenat 70km/h for next 45min what is the average speed of car?
Answer» Answer:- Given:- SPEED of the car in first 30 MIN = 50 km/h. We know that, Distance = Speed × time. So, ⟹ Distance travelled by car in first 30 min = 50 × (30/60) [ ∵ 1 MINUTE = 1/60 hrs ] ⟹ Distance travelled by car in first 30 min = 25 km Also given that, Speed of the car for NEXT 15 min = 30 km/hr So, Distance travelled by the car for next 15 min = 30 × (15/60) ⟹ Distance travelled by the car for next 15 min = 7.5 km Speed of the car in last 45 min = 70 km/h ⟹ Distance travelled by car in last 45 min = 70 × (45/60) ⟹ Distance travelled by car in last 45 min = 52.5 km We know that, Average speed = Total distance travelled/total time taken. We have:- Total distance = (25 + 7.5 + 52.5) km = 85 km. Total time = 30 + 15 + 45 = 90 min = 90/60 hrs = 3/2 hrs. So, ⟹ Average speed of the car = 85 / (3/2) ⟹ Average speed of the car = 85 × (2/3) ⟹ Average speed of the car = 56.66 km/hr ∴ The Average speed of the car is 56.66 km/hr.

23.

A car travels at a speed of 50km/h for 30min , at 30km/h for the next 15min and thenat 70km/h for next 45min what is the average speed of car?

Answer»

Answer:-

Given:-

SPEED of the car in first 30 MIN = 50 km/h.

We know that,

Distance = Speed × time.

So,

⟹ Distance travelled by car in first 30 min = 50 × (30/60)

[ ∵ 1 MINUTE = 1/60 hrs ]

⟹ Distance travelled by car in first 30 min = 25 km

Also given that,

Speed of the car for NEXT 15 min = 30 km/hr

So, Distance travelled by the car for next 15 min = 30 × (15/60)

⟹ Distance travelled by the car for next 15 min = 7.5 km

Speed of the car in last 45 min = 70 km/h

⟹ Distance travelled by car in last 45 min = 70 × (45/60)

⟹ Distance travelled by car in last 45 min = 52.5 km

We know that,

Average speed = Total distance travelled/total time taken.

We have:-

Total distance = (25 + 7.5 + 52.5) km = 85 km.

Total time = 30 + 15 + 45 = 90 min = 90/60 hrs = 3/2 hrs.

So,

⟹ Average speed of the car = 85 / (3/2)

⟹ Average speed of the car = 85 × (2/3)

⟹ Average speed of the car = 56.66 km/hr

∴ The Average speed of the car is 56.66 km/hr.

Discussion

24.	(physics Q for 11 class)1) when two bodies stick together after collision, the collision is___options.,1) perfectly elastic b) partially elastic c) perfectly inelastic d) completely elastic plz right ans batana yr
Answer» ANSWER -PERFECTLY ELASTIC

Discussion

25.	6:00 PMA pendulum 1.5 m long isreloaded from rest when thesupport string is at an angle of30.0° with the vertical. What isthe speed of the job at thebottom of the swing?Seen
Answer» Answer: hi hellow hha HA ha ha ha ha ha ha ha GA

25.

6:00 PMA pendulum 1.5 m long isreloaded from rest when thesupport string is at an angle of30.0° with the vertical. What isthe speed of the job at thebottom of the swing?Seen

Answer»

Answer:

hi hellow hha HA ha ha ha ha ha ha ha GA

Discussion

26.	Q.18) Explain combination of cells in parallelQ.19) State and explain Coulomb's law of Electric Charge
Answer» EXPLANATION: Cells connected in Parallel Combination The cells are said to be connected in parallel if positive terminals of all the cells are connected together at one POINT and their negative terminals at another point. The external resistor is connected between these TWO points.

26.

Q.18) Explain combination of cells in parallelQ.19) State and explain Coulomb's law of Electric Charge

Answer»

EXPLANATION:

Cells connected in Parallel Combination

The cells are said to be connected in parallel if positive terminals of all the cells are connected together at one POINT and their negative terminals at another point. The external resistor is connected between these TWO points.

Discussion

27.	A magnifying glass of focal length 20 cm is used for readletters, calculate the object distance if image is formed at 40 cm away from lens.
Answer» EXPLANATION: mivsuvauba7ga8ha7g7a9gg

27.

A magnifying glass of focal length 20 cm is used for readletters, calculate the object distance if image is formed at 40 cm away from lens.

Answer»

EXPLANATION:

mivsuvauba7ga8ha7g7a9gg

Discussion

28.	The charge of neutron is ______
Answer» Answer: neutral Explanation: NEUTRONS are neither POSITIVE nor NEGATIVE they don't have any charge so they are neutral

28.

The charge of neutron is ______

Answer»

Answer:

neutral

Explanation:

NEUTRONS are neither POSITIVE nor NEGATIVE they don't have any charge so they are neutral

Discussion

29.	In which motion the object moves in 2 directions:A Vertical motion B Horizontal motionC Projectile motionD All the choices
Answer» Answer: PROJECTILE motion Explanation: The projectile has TWO COMPONENTS of velocity ( by Law of Resolution of Vectors) v COS(theta) and v SIN(theta)

29.

In which motion the object moves in 2 directions:A Vertical motion B Horizontal motionC Projectile motionD All the choices

Answer»

Answer:

PROJECTILE motion

Explanation:

The projectile has TWO COMPONENTS of velocity ( by Law of Resolution of Vectors)

v COS(theta) and v SIN(theta)

Discussion

30.	Il velocity time graph is parallel to time axis,What type of motion does it represent?
Answer» Explanation: ➜ㅤIf the line is PARALLEL to X-axis in a velocity-time GRAPH that MEANS that with increase in time velocity REMAINS constant. ➜ㅤThere will be no acceleration and the BODY will move with constant velocity. Thanks ☺️

30.

Il velocity time graph is parallel to time axis,What type of motion does it represent?

Answer»

Explanation:

➜ㅤIf the line is PARALLEL to X-axis in a velocity-time GRAPH that MEANS that with increase in time velocity REMAINS constant.

➜ㅤThere will be no acceleration and the BODY will move with constant velocity.

Thanks ☺️

Discussion

31.	The relation between the net force and the acceleration is:?A inversely proportional B proportionalC no relationD non of the choices
Answer» ANSWER: Directly PROPORTIONAL Explanation: F=ma so FORCE is directly proportional to acceleration Please MARK me with BRAINLIEST if you are satisfied with my answer :)

31.

The relation between the net force and the acceleration is:?A inversely proportional B proportionalC no relationD non of the choices

Answer»

ANSWER:

Directly PROPORTIONAL

Explanation:

F=ma so FORCE is directly proportional to acceleration

Please MARK me with BRAINLIEST if you are satisfied with my answer :)

Discussion

32.	The three sub atomic particles are _____ _____and ______
Answer» ANSWER: PROTONS, NEUTRONS, and ELECTRONS

32.

The three sub atomic particles are ___ _and ____

Answer»

ANSWER:

PROTONS, NEUTRONS, and ELECTRONS

Discussion

33.	A boat is moving with a net force 450 N to the left , if the mass of the boat is 190 kg. Find the magnitude and the direction of the acceleration?
Answer» ANSWER: SOUTH BRO Explanation: MARK ME AS A BRANIST PLEASE

33.

A boat is moving with a net force 450 N to the left , if the mass of the boat is 190 kg. Find the magnitude and the direction of the acceleration?

Answer»

ANSWER:

SOUTH BRO

Explanation:

MARK ME AS A BRANIST PLEASE

Discussion

34.	Multiply : 20.24 x 30.3 x 1.456. Express your answer correct to significant figures.
Answer» Explanation: 20.24×30.3×1.456 892.9 here the 4digit no. so we will TAKE 4digit and here the POINT is after 2DIGIT so the SIGNIFICANT figure will be 89.29×10^1

34.

Multiply : 20.24 x 30.3 x 1.456. Express your answer correct to significant figures.

Answer»

Explanation:

20.24×30.3×1.456

892.9

here the 4digit no. so we will TAKE 4digit

and here the POINT is after 2DIGIT so the SIGNIFICANT figure will be 89.29×10^1

Discussion

35.	Compare the time period of 2pendulam of length 25m and 36m
Answer» EXPLANATION: TIME PERIOD of PENDULUM $T \: = 2\pi \sqrt{ \frac{l}{g} }$ $T \: \infty \sqrt{l}$ $\frac{T1}{T2} = \frac{ \sqrt{l1} }{ \sqrt{l2} }$ $\frac{T1}{T2} = \frac{ \sqrt{25} }{ \sqrt{36} }$ $\frac{T1}{T2} = \frac{5}{6}$ T1 : T2 = 5:6

35.

Compare the time period of 2pendulam of length 25m and 36m

Answer»

EXPLANATION:

TIME PERIOD of PENDULUM

$T \: = 2\pi \sqrt{ \frac{l}{g} }$

$T \: \infty \sqrt{l}$

$\frac{T1}{T2} = \frac{ \sqrt{l1} }{ \sqrt{l2} }$

$\frac{T1}{T2} = \frac{ \sqrt{25} }{ \sqrt{36} }$

$\frac{T1}{T2} = \frac{5}{6}$

T1 : T2 = 5:6

Discussion

36.	Force and displacement is normal to each other
Answer» ANSWER: I HOPE it JASON for your BEST of LUCK

36.

Force and displacement is normal to each other

Answer»

ANSWER:

I HOPE it JASON for your BEST of LUCK

Discussion

37.	When the element belongs to 3rd period and 5th group then state and prove whether it is a metal or non metal
Answer» ANSWER: zcjjxvjvxjxvjxvxvjxvnxvjjgxrurzufxuk gkg KH OH I gxigxjfxuxufjxfjfxjgx

37.

When the element belongs to 3rd period and 5th group then state and prove whether it is a metal or non metal

Answer»

ANSWER:

zcjjxvjvxjxvjxvxvjxvnxvjjgxrurzufxuk gkg KH OH I gxigxjfxuxufjxfjfxjgx

Discussion

38.	The path in which the electron revolve around the nucleus is called______
Answer» ANSWER: The PATH in which the electron revolve AROUND the nucleus is called Circular Orbit.

38.

The path in which the electron revolve around the nucleus is called______

Answer»

ANSWER:

The PATH in which the electron revolve AROUND the nucleus is called Circular Orbit.

Discussion

39.	Time taken to constitute a current of 1.6 A by a charge of 6.4 x 10 ^ - 19 C of charge will be
Answer» Answer: 4 × 10^-19 sec Explanation: CURRENT, I = 1.6 A Charge, Q = 6.4 × 10^-19 C I = Q / t 1.6 = 6.4 × 10^-19 / t t = 6.4 × 10^-19 / 1.6 t = 4 × 10^-19 sec

39.

Time taken to constitute a current of 1.6 A by a charge of 6.4 x 10 ^ - 19 C of charge will be

Answer»

Answer:

4 × 10^-19 sec

Explanation:

CURRENT, I = 1.6 A

Charge, Q = 6.4 × 10^-19 C

I = Q / t

1.6 = 6.4 × 10^-19 / t

t = 6.4 × 10^-19 / 1.6

t = 4 × 10^-19 sec

Discussion

40.	A man is pushing a car by a force 120 N . The mass of the car is 125 kg and the car is not moving. Find the net force acting on the car.
Answer» ANSWER: is this answer you are LOOKING for

40.

A man is pushing a car by a force 120 N . The mass of the car is 125 kg and the car is not moving. Find the net force acting on the car.

Answer»

ANSWER:

is this answer you are LOOKING for

Discussion

41.	Three liquids A, B and C are taken in a vessel is depicted.i) Among these which liquid has the highest density?
Answer» Answer: He had developed a talent for MATHEMATICS from a very young age, MASTERING trigonometry at the age of 12 and was eligible for a SCHOLARSHIP at the Government Arts COLLEGE in Kumbakonam. He had ENROLLED in Madras' Pachaiyappa College at the age of 14

41.

Three liquids A, B and C are taken in a vessel is depicted.i) Among these which liquid has the highest density?

Answer»

Answer:

He had developed a talent for MATHEMATICS from a very young age, MASTERING trigonometry at the age of 12 and was eligible for a SCHOLARSHIP at the Government Arts COLLEGE in Kumbakonam. He had ENROLLED in Madras' Pachaiyappa College at the age of 14

Discussion

42.	If a vetor Ā = āx+2āy+3āz find its magnitude and direction
Answer» ANSWER: this is the answer of your QUESTIONS.

42.

If a vetor Ā = āx+2āy+3āz find its magnitude and direction

Answer»

ANSWER:

this is the answer of your QUESTIONS.

Discussion

43.	Rahul bought a car Rs. 4 lakhs in 2018. The rate ofdepreciation is 10% per year. Find the depreciationvalue of the car in the year 2020?Solution P=4,00,000 R= 10%, N=_years.A=P(_______) (Formula)On substituting the values of P, N, and R solving we getA=4,00,000 X _______ square = 4000 X (_______)= Rs.________Depreciation in price = Cost price - A= Rs.________ello guyshow are you?what are you doing?
Answer» Answer: Hello I am MAHEK can any one be my friend THANKS for thanks AKSHARA but I want follow er

43.

Rahul bought a car Rs. 4 lakhs in 2018. The rate ofdepreciation is 10% per year. Find the depreciationvalue of the car in the year 2020?Solution P=4,00,000 R= 10%, N=_years.A=P(___) (Formula)On substituting the values of P, N, and R solving we getA=4,00,000 X _ square = 4000 X (_)= Rs.Depreciation in price = Cost price - A= Rs.____ello guyshow are you?what are you doing?

Answer»

Answer:

Hello I am MAHEK can any one be my friend

THANKS for thanks AKSHARA but I want follow er

Discussion

44.	Releasing a ball from your hand is an example of a projectile motion. true/false
Answer» ANSWER: Releasing a ball from your HAND is an EXAMPLE of a projectile MOTION. This statement is 'TRUE'.

44.

Releasing a ball from your hand is an example of a projectile motion. true/false

Answer»

ANSWER:

Releasing a ball from your HAND is an EXAMPLE of a projectile MOTION. This statement is 'TRUE'.

Discussion

45.	The particles is liquid are ______
Answer» ANSWER: fluid Explanation: PLS MARK me BRAINALIEST

45.

The particles is liquid are ______

Answer»

ANSWER:

fluid

Explanation:

PLS MARK me BRAINALIEST

Discussion

46.	Ln an atom the negatively charged particles is also called as _______
Answer» ANSWER: ln an atom the negatively charged PARTICLES is ALSO CALLED as electrons

46.

Ln an atom the negatively charged particles is also called as _______

Answer»

ANSWER:

ln an atom the negatively charged PARTICLES is ALSO CALLED as

electrons

Discussion

47.	How to fly with elitera easily in Minecraft
Answer» ANSWER: WALK FRONT and USE double space and click on MOUSE to launc fireworks

47.

How to fly with elitera easily in Minecraft

Answer»

ANSWER:

WALK FRONT and USE double space and click on MOUSE to launc fireworks

Discussion

48.	When we have a unbalanced forces, the net force is equal to zero. true/false
Answer» The ANSWER is true . Explanation: When we have a UNBALANCED forces, the NET FORCE is equal to zero .

48.

When we have a unbalanced forces, the net force is equal to zero. true/false

Answer»

The ANSWER is true .

Explanation:

When we have a UNBALANCED forces, the NET FORCE is equal to zero .

Discussion

49.	What happen if the tyre pressure is too low?
Answer» Answer: When air pressure gets too low, the tire's SIDEWALLS flex more, and HEAT builds up WITHIN the tire. If the overheating gets severe, a SECTION of the tire's rubber can SEPARATE from its carcassIf this happens suddenly, a blowout can result Explanation: $\:hope \: it \: helps \: you$

49.

What happen if the tyre pressure is too low?

Answer»

Answer:

When air pressure gets too low, the tire's SIDEWALLS flex more, and HEAT builds up WITHIN the tire. If the overheating gets severe, a SECTION of the tire's rubber can SEPARATE from its carcassIf this happens suddenly, a blowout can result

Explanation:

$\:hope \: it \: helps \: you$

Discussion

50.	A force is an action that can cause changing of the motion of the object true/false
Answer» Answer: true Explanation: mark me BRAINLIEST LIKE N rate

50.

A force is an action that can cause changing of the motion of the object true/false

Answer»

Answer:

true

Explanation:

mark me BRAINLIEST LIKE N rate

Discussion

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How to fly with elitera easily in Minecraft