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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 7251. |
The relation between position(x) and time (t) are given below for a particle moving along a straight line.Which of the following equation represents uniformly accelerated motion ? \lbrack where α and β are positive cons†an ts\rbrack (1)β x=α t+αβ (2)α x=β+t (3)xt=αβ (4)α t=root β+x |
| Answer» The relation between position(x) and time (t) are given below for a particle moving along a straight line.Which of the following equation represents uniformly accelerated motion ? \lbrack where α and β are positive cons†an ts\rbrack (1)β x=α t+αβ (2)α x=β+t (3)xt=αβ (4)α t=root β+x | |
| 7252. |
Find the work done by a boy in blowing a balloon of volume 5L to the pressure of 5 atmospheres. |
| Answer» Find the work done by a boy in blowing a balloon of volume 5L to the pressure of 5 atmospheres. | |
| 7253. |
If we place one iron nail in water it sinks in water but on the other hand one ship which is much greater in weight than one iron nail, floats on water surface. How? Explain. |
| Answer» If we place one iron nail in water it sinks in water but on the other hand one ship which is much greater in weight than one iron nail, floats on water surface. How? Explain. | |
| 7254. |
weight of an object reduces to one third of the weight on the surface of earth at height h . find the value of h |
| Answer» weight of an object reduces to one third of the weight on the surface of earth at height h . find the value of h | |
| 7255. |
Among the following, the substance expected to have the highest ignition temperature is |
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Answer» Among the following, the substance expected to have the highest ignition temperature is |
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| 7256. |
a man lifts a luggage of 20 kg and puts it on his head 1.7 m above the ground.what is the work done by the man on the luggage if g=10 m/s^2 |
| Answer» a man lifts a luggage of 20 kg and puts it on his head 1.7 m above the ground.what is the work done by the man on the luggage if g=10 m/s^2 | |
| 7257. |
An object placed in front of a concave mirror of focal length 0.15 m produces a virtual image, which is twice the size of the object. The position of the object with respect to the mirror is |
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Answer» An object placed in front of a concave mirror of focal length 0.15 m produces a virtual image, which is twice the size of the object. The position of the object with respect to the mirror is |
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| 7258. |
Find the excess pressure inside a mercury drop of radius 2.0 mm. The surface tension of mercury = 0.464 N/m |
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Answer» Find the excess pressure inside a mercury drop of radius 2.0 mm. The surface tension of mercury = 0.464 N/m |
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| 7259. |
Displacement is vector quantity but why work done is scalar quantity? (W=F X Displacement) |
| Answer» Displacement is vector quantity but why work done is scalar quantity? (W=F X Displacement) | |
| 7260. |
How can we say that the rate of change of momentum is directly proportional to the applied force? |
| Answer» How can we say that the rate of change of momentum is directly proportional to the applied force? | |
| 7261. |
The angular diameter of Sun as measured from the earth is 0.001 radian. Then the diameter of the Sun in meters is?? |
| Answer» The angular diameter of Sun as measured from the earth is 0.001 radian. Then the diameter of the Sun in meters is?? | |
| 7262. |
The diffraction grating is used to diffract all types of radiations. State if the statement is true or false. |
| Answer» The diffraction grating is used to diffract all types of radiations. State if the statement is true or false. | |
| 7263. |
A boy tied a string to one of the ends of a box and started sliding the box on a playground. He then observed a circular track and rushed there and completed one revolution of the track with his toy. The work done by friction on the toy is necessary: |
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Answer» A boy tied a string to one of the ends of a box and started sliding the box on a playground. He then observed a circular track and rushed there and completed one revolution of the track with his toy. The work done by friction on the toy is necessary: |
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| 7264. |
The angular speed of the second hand of a watch is : |
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Answer» The angular speed of the second hand of a watch is : |
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| 7265. |
A positively-charged particle (alpha-particle) projected towards the west is deflected towards the north by a magnetic field in horizontal plane. The direction of the magnetic field is |
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Answer» A positively-charged particle (alpha-particle) projected towards the west is deflected towards the north by a magnetic field in horizontal plane. The direction of the magnetic field is |
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| 7266. |
ntA particle is released from top of tower of height 80 m. (Takeg= 10 m/s2). Height of the particle from ground at t=2 sec will be?n ntn |
| Answer» ntA particle is released from top of tower of height 80 m. (Takeg= 10 m/s2). Height of the particle from ground at t=2 sec will be?n ntn | |
| 7267. |
A concave mirror and a convex mirror of focal length 10 cm and 15 cm respectively are placed at a distance of 70 cm. An object AB of height 2 cm is placed in between both both the mirrors at a distance of 30 cm from the concave mirror. The first ray is incident on the concave mirror then on the convex mirror. Then final size and position of the image is |
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Answer» A concave mirror and a convex mirror of focal length 10 cm and 15 cm respectively are placed at a distance of 70 cm. An object AB of height 2 cm is placed in between both both the mirrors at a distance of 30 cm from the concave mirror. The first ray is incident on the concave mirror then on the convex mirror. Then final size and position of the image is |
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| 7268. |
How vernier calliper and screw gauge is direct method and parallex is indirect method? |
| Answer» How vernier calliper and screw gauge is direct method and parallex is indirect method? | |
| 7269. |
An automobile vehicle has a mass of 1500 kg. What must be the force between the vehicle and road if the vehicle is to be stopped with a negative acceleration of 1.7 ms−2? |
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Answer» An automobile vehicle has a mass of 1500 kg. What must be the force between the vehicle and road if the vehicle is to be stopped with a negative acceleration of 1.7 ms−2? |
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| 7270. |
A stone is projected from the ground with a velocity of 14m/s one second later it clears a wall 2m high. The angle of projection is (g=10m/s2) |
| Answer» A stone is projected from the ground with a velocity of 14m/s one second later it clears a wall 2m high. The angle of projection is (g=10m/s2) | |
| 7271. |
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below:Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.(a) What happens to the air in-between Anhad and the loudspeaker?(b) Explain how Anhad receives sound in both ears. |
Answer» In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below: Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz. (a) What happens to the air in-between Anhad and the loudspeaker? (b) Explain how Anhad receives sound in both ears. |
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| 7272. |
Explain motional EMF briefly? And it's variation of potential difference |
| Answer» Explain motional EMF briefly? And it's variation of potential difference | |
| 7273. |
A particle is executing SHM about y=0 along y axis. It's position at an instant is given by y=7sin(πt). It's average velocity 0 to 0.5s is |
| Answer» A particle is executing SHM about y=0 along y axis. It's position at an instant is given by y=7sin(πt). It's average velocity 0 to 0.5s is | |
| 7274. |
When a golf ball is lowered into a measuring cylinder containing water,the water level rises by 30 cm3 when the ball is completely submerged. If the mass of ball in air is 33 g, what would be its density? |
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Answer» When a golf ball is lowered into a measuring cylinder containing water,the water level rises by 30 cm3 when the ball is completely submerged. If the mass of ball in air is 33 g, what would be its density? |
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| 7275. |
Find the potential difference required to flow a current of 200 mA in a wire of resistance 20 ohm. |
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Answer» Find the potential difference required to flow a current of 200 mA in a wire of resistance 20 ohm. |
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| 7276. |
In an electrical circuit, three incandescent bulbs A, B and C of rating 40 W, 60 W and 100 W respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness? |
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Answer» In an electrical circuit, three incandescent bulbs A, B and C of rating 40 W, 60 W and 100 W respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness? |
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| 7277. |
Question 68(i)The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions.For how many seconds did the ice block have no change in temperature? |
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Answer» Question 68(i) The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions.  For how many seconds did the ice block have no change in temperature? |
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| 7278. |
It is sometimes heard that inertial frame of reference is only an ideal concept and no such inertial frame actually exist . Comment |
| Answer» It is sometimes heard that inertial frame of reference is only an ideal concept and no such inertial frame actually exist . Comment | |
| 7279. |
A graph of the x-component of the electric field as a function of x in a region of space is shown. The y and z components of the electric field are zero in this region. If the electric potential is 10 V at the origin, then potential at x=2 m is |
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Answer» A graph of the x-component of the electric field as a function of x in a region of space is shown. The y and z components of the electric field are zero in this region. If the electric potential is 10 V at the origin, then potential at x=2 m is |
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| 7280. |
Statements : All roads are poles. No pole is a house. Conclusions : I. Some roads are houses. II. Some houses are poles. |
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Answer» Statements : All roads are poles. No pole is a house. Conclusions : I. Some roads are houses. II. Some houses are poles. |
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| 7281. |
Question 2(i)Draw a graph for the followingSide of square(in cm)233.556Perimeter (in cm)812142024Is it linear graph? |
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Answer» Question 2(i) Draw a graph for the following Side of square(in cm)233.556Perimeter (in cm)812142024 Is it linear graph? |
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| 7282. |
if a force of cons†an t magnitude acts in direction prependicular to the motion of a body then its : 1. speed is uniform 2. velocity is uniform 3. momentum is uniform 4. all of these |
| Answer» if a force of cons†an t magnitude acts in direction prependicular to the motion of a body then its : 1. speed is uniform 2. velocity is uniform 3. momentum is uniform 4. all of these | |
| 7283. |
A body weighs 72 N on the surface of the earth. What will be the force of gravity acting on the body at a height equal to half the radius of the earth above the earth's surface? |
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Answer» A body weighs 72 N on the surface of the earth. What will be the force of gravity acting on the body at a height equal to half the radius of the earth above the earth's surface? |
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| 7284. |
A wire when connected to 220 V main supply has power dissipation P1. Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is P2. Then P2:P1 is |
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Answer» A wire when connected to 220 V main supply has power dissipation P1. Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is P2. Then P2:P1 is |
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| 7285. |
A frontend loader applied 150 N of force to lift a stone. If a work of 1250 joules was done in total, then what is the distance moved by the stone? |
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Answer» A frontend loader applied 150 N of force to lift a stone. If a work of 1250 joules was done in total, then what is the distance moved by the stone? |
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| 7286. |
57.A body moved along x and y axis according to equation What is trajectory followed by the body?? |
| Answer» 57.A body moved along x and y axis according to equation What is trajectory followed by the body?? | |
| 7287. |
A motorcar is moving with a velocity of 108 km/h and it takes 4 s to stop after the brakes are applied. Calculate the average force exerted by the brakes on the motorcar if it's mass along with the passengers is 1000 kg. |
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Answer» A motorcar is moving with a velocity of 108 km/h and it takes 4 s to stop after the brakes are applied. Calculate the average force exerted by the brakes on the motorcar if it's mass along with the passengers is 1000 kg. |
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| 7288. |
The radius of curvature of the objective lens of a Galilean telescope is 22 cm. Find the focal length of eyepiece when length of the telescope is 19 cm in case of normal adjustment [μe=1.5] |
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Answer» The radius of curvature of the objective lens of a Galilean telescope is 22 cm. Find the focal length of eyepiece when length of the telescope is 19 cm in case of normal adjustment [μe=1.5] |
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| 7289. |
Indeed there had been a distant for some time, although I had paid noattention to it. Now I started listening and I thought it sounded like the characteristic noise of jet airplanes constantly landing and taking off.Therefore rumbling means ____________________________. |
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Answer» Indeed there had been a attention to it. Now I started listening and I thought it sounded like the characteristic noise of jet airplanes constantly landing and taking off. Therefore rumbling means ____________________________. |
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| 7290. |
Is it true that the number of magnetic field lines determine the strength of the magnetic field? |
| Answer» Is it true that the number of magnetic field lines determine the strength of the magnetic field? | |
| 7291. |
Ritu has trouble with hearing and speaking. Name the condition she has. |
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Answer» Ritu has trouble with hearing and speaking. Name the condition she has. |
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| 7292. |
By walking at 34 th of his usual speed, a man reaches office 20 minutes later than usual. How much time does he usually take? |
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Answer» By walking at 34 th of his usual speed, a man reaches office 20 minutes later than usual. How much time does he usually take? |
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| 7293. |
An object starts from rest and travels with a constant acceleration of g . What is the expression for its final velocity v after travelling a distance of S. |
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Answer» An object starts from rest and travels with a constant acceleration of g . What is the expression for its final velocity v after travelling a distance of S. |
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| 7294. |
Time-velocity graph of a particle is shown in fig. Find its instantaneous acceleration at following intervals : (i) at t = 3s (ii) at t = 6s (iii) at t = 9s |
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Answer» Time-velocity graph of a particle is shown in fig. Find its instantaneous acceleration at following intervals :
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| 7295. |
define the following 1 Distance 2 Displacement 3 scalar 4 vector 5 speed 6 velocity |
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Answer» define the following 1 Distance 2 Displacement 3 scalar 4 vector 5 speed 6 velocity |
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| 7296. |
Why aperture in the telescope is made of larger size? |
| Answer» Why aperture in the telescope is made of larger size? | |
| 7297. |
Name the energy transfers which occur when:(i) an electric bell rings(ii) someone speaks into a microphone(iii) there is a picture on a television screen(iv) a torch is on |
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Answer» Name the energy transfers which occur when: (i) an electric bell rings (ii) someone speaks into a microphone (iii) there is a picture on a television screen (iv) a torch is on |
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| 7298. |
what is motion and reference point |
| Answer» what is motion and reference point | |
| 7299. |
Two swimmers leaves point A on one bank of river to reach the Point B just opposite to A on the other bank. One of them crosses the river along the straight line A B while the other swims right angeled to the stream and then walk the distance that has been carried away by the stream to get to the point B. What was the velocity u of the walking if both of them reach there simultaneously. Velocity of river is 2.5kmph velocity of swimming is 2.5kmph |
| Answer» Two swimmers leaves point A on one bank of river to reach the Point B just opposite to A on the other bank. One of them crosses the river along the straight line A B while the other swims right angeled to the stream and then walk the distance that has been carried away by the stream to get to the point B. What was the velocity u of the walking if both of them reach there simultaneously. Velocity of river is 2.5kmph velocity of swimming is 2.5kmph | |
| 7300. |
The motion of a particle is described by the equation u=at. What is the distance travelled by particle in first 4 second ? |
| Answer» The motion of a particle is described by the equation u=at. What is the distance travelled by particle in first 4 second ? | |
distant for some time, although I had paid no