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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.
| 3851. |
Question 5A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer. |
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Answer» Question 5 A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer. |
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| 3852. |
A force is applied on a moving ball as shown.Select the correct path that the ball will follow after the force is applied. |
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Answer» A force is applied on a moving ball as shown. |
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| 3853. |
the dimensional formula for which of the following pairs is not same ? 1)work and potential energy 2) energy per unit volume and pressure 3)impulse and torque 4)angular momentum and plancks cons†an t |
| Answer» the dimensional formula for which of the following pairs is not same ? 1)work and potential energy 2) energy per unit volume and pressure 3)impulse and torque 4)angular momentum and plancks cons†an t | |
| 3854. |
A matchbox measures 4 cm × 2.5cm × 1.5cm. What will be the volume of a packet containing 12 such boxes? |
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Answer» A matchbox measures 4 cm × 2.5cm × 1.5cm. What will be the volume of a packet containing 12 such boxes? |
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| 3855. |
If the mass of the body is tripled and it's velocity become doubles then the linear momentum of the body will |
| Answer» If the mass of the body is tripled and it's velocity become doubles then the linear momentum of the body will | |
| 3856. |
49) A clock S is based on oscillations of a spring and aclock P is based on pendulum motion. Both clocksrun at the same rate on earth. On a planet havingsame density as earth but twice the radius then(1) S will run faster than P(2) P will run faster than S(3) Both run at same rate(4) Both run at same rate but different than earth |
| Answer» 49) A clock S is based on oscillations of a spring and aclock P is based on pendulum motion. Both clocksrun at the same rate on earth. On a planet havingsame density as earth but twice the radius then(1) S will run faster than P(2) P will run faster than S(3) Both run at same rate(4) Both run at same rate but different than earth | |
| 3857. |
What do you think the talking fan was demanding? |
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Answer» What do you think the
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| 3858. |
Which of the following is a device that is used to measure mass? |
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Answer» Which of the following is a device that is used to measure mass? |
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| 3859. |
Which of the following acts as the electromagnet in an electric bell? |
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Answer» Which of the following acts as the electromagnet in an electric bell? |
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| 3860. |
Question 2Name some sources of direct current. |
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Answer» Question 2 |
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| 3861. |
Ray is reflected in turn by two plane mirrors and cleaned at right angle with each other find the angle between incident and reflected ray |
| Answer» Ray is reflected in turn by two plane mirrors and cleaned at right angle with each other find the angle between incident and reflected ray | |
| 3862. |
One end of a copper rod of length 1.0 m and area of cross-section 10−3 is immersed in boiling water and the other end in ice. If the coefficient of thermal conductivity of copper is 92cal/m−s−∘C and the latent heat of ice is 8×104cal/kg, then the amount of ice which will melt in one minute is |
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Answer» One end of a copper rod of length 1.0 m and area of cross-section 10−3 is immersed in boiling water and the other end in ice. If the coefficient of thermal conductivity of copper is 92cal/m−s−∘C and the latent heat of ice is 8×104cal/kg, then the amount of ice which will melt in one minute is |
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| 3863. |
Garima was returning to home from office. Suddenly she saw thunderstorms happening around. She called Sushweta to take advice from her on what she should do. Which of the following(s) should be the advice(s) given by Sushweta? |
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Answer» Garima was returning to home from office. Suddenly she saw thunderstorms happening around. She called Sushweta to take advice from her on what she should do. Which of the following(s) should be the advice(s) given by Sushweta? |
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| 3864. |
A particle is executing SHM with time period T.Starting from mean position, time taken by it to 7/8 complete oscillations, is |
| Answer» A particle is executing SHM with time period T.Starting from mean position, time taken by it to 7/8 complete oscillations, is | |
| 3865. |
the length of a given cylindrical wire is increased by 100%. Due to the consequent decrease in diameter the change in the resistance of the wire will be :- (1) 300% (2) 200% (3) 100% (4) 50% |
| Answer» the length of a given cylindrical wire is increased by 100%. Due to the consequent decrease in diameter the change in the resistance of the wire will be :- (1) 300% (2) 200% (3) 100% (4) 50% | |
| 3866. |
Three bulbs of power 50W 100W and 200W are connected in series then equivalent power is approximately |
| Answer» Three bulbs of power 50W 100W and 200W are connected in series then equivalent power is approximately | |
| 3867. |
A small candle 2.5 cm in size is placed 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance in cm from the mirror should a screen be placed in order to receive sharp image? |
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Answer» A small candle 2.5 cm in size is placed 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance in cm from the mirror should a screen be placed in order to receive sharp image? |
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| 3868. |
In given circuit determine |
| Answer» In given circuit determine | |
| 3869. |
Find the conversion factor SI unit of force and CGS unit of force ? |
| Answer» Find the conversion factor SI unit of force and CGS unit of force ? | |
| 3870. |
Two cylinder of equal cross sectional area .A contain water upto height h1 and h2. The vessel are are inteconnected so that level in them become equal . Calculate the work done by the force of gravity during the process . The density of water is |
| Answer» Two cylinder of equal cross sectional area .A contain water upto height h1 and h2. The vessel are are inteconnected so that level in them become equal . Calculate the work done by the force of gravity during the process . The density of water is | |
| 3871. |
If you know current is in a particular direction, can you say all the 'balls' are going only in that direction at any point of time? |
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Answer» If you know current is in a particular direction, can you say all the 'balls' are going only in that direction at any point of time? |
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| 3872. |
Which of the following statement(s) are correct regarding heat? |
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Answer» Which of the following statement(s) are correct regarding heat? |
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| 3873. |
What will happen if we hang a charged glass rod in place of the ebonite rod? |
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Answer» What will happen if we hang a charged glass rod in place of the ebonite rod? |
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| 3874. |
If a car is moving in the same direction and with speed as you, then what can you say about the motion of the car? |
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Answer» If a car is moving in the same direction and with speed as you, then what can you say about the motion of the car? |
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| 3875. |
An electric current causes: |
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Answer» An electric current causes: |
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| 3876. |
Choose the image that looks the same after a half turn, but different after a quarter turn. |
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Answer» Choose the image that looks the same after a half turn, but different after a quarter turn. |
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| 3877. |
The shape of earth's magnetic field resembles that of an imaginary ___ magnet. |
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Answer» The shape of earth's magnetic field resembles that of an imaginary |
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| 3878. |
Match the following. Group ‘A’ Group ‘B’ (a) Glass road 1. charged body (b) Ebonite rod 2. positive charge (c) Lightning conductor 3. negative charge (d) Electroscope 4. lightning |
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Answer» Match the following.
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| 3879. |
An electromagnetic wave is propagating along the +z axis. The electric and the magnetic fields, associated with this wave, can be represented by, |
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Answer» An electromagnetic wave is propagating along the +z axis. The electric and the magnetic fields, associated with this wave, can be represented by, |
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| 3880. |
I am standing in front of a mirror and my left hand is on the right side and my right hand is on the left side. What kind of mirror(s) am I looking at? |
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Answer» I am standing in front of a mirror and my left hand is on the right side and my right hand is on the left side. What kind of mirror(s) am I looking at? |
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| 3881. |
A wire of a certain material is stretched slowly by 10%.Its new resistance and specific resistance becomes |
| Answer» A wire of a certain material is stretched slowly by 10%.Its new resistance and specific resistance becomes | |
| 3882. |
A car moving on a road has a kinetic energy of 10 kJ. The driver suddenly applies brakes and the car skids for some distance and stops. Does this violate the law of conservation of energy? Explain briefly. |
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Answer» A car moving on a road has a kinetic energy of 10 kJ. The driver suddenly applies brakes and the car skids for some distance and stops. Does this violate the law of conservation of energy? Explain briefly. |
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| 3883. |
What is meant by intrinsic charge carriers in semiconductor s? |
| Answer» What is meant by intrinsic charge carriers in semiconductor s? | |
| 3884. |
Question 3(a)State whether the following statement is true or false.Like charges attract each other. |
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Answer» Question 3(a) State whether the following statement is true or false. |
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| 3885. |
which of the following practical units of lengthis not correct.1.1fermi=10 to the power -15m. 2. 1astronomicakal unit=1.496×10 to the power 11. 3. 1 parce=3.26light year. 4.1 light year=9.46×10to thepower12m |
| Answer» which of the following practical units of lengthis not correct.1.1fermi=10 to the power -15m. 2. 1astronomicakal unit=1.496×10 to the power 11. 3. 1 parce=3.26light year. 4.1 light year=9.46×10to thepower12m | |
| 3886. |
To expel half the mass of air from a large flask at 27∘C, it must be heated to |
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Answer» To expel half the mass of air from a large flask at 27∘C, it must be heated to |
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| 3887. |
A school playground is divided by a 2 m wide path, which is parallel to the width of the playground and a 3 m wide path which is parallel to the length of the ground as given in the figure below. If the length and width of the playground are 120 m and 80 m respectively, find the area of the remaining playground. |
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Answer» A school playground is divided by a 2 m wide path, which is parallel to the width of the playground and a 3 m wide path which is parallel to the length of the ground as given in the figure below. If the length and width of the playground are 120 m and 80 m respectively, find the area of the remaining playground. |
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| 3888. |
An electromagnet works based on the ___. |
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Answer» An electromagnet works based on the |
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| 3889. |
138.The blocks shown in figure have equal masses. The surface of A is smooth but that of B has a friction coefficient of 0.1 with the floor. Block A is moving at a speed of 10m/s towards B which is kept at rest. Find the distance travelled by B if(a)the collision is perfectly elastic and(b) the collision is perfectly inelastic |
| Answer» 138.The blocks shown in figure have equal masses. The surface of A is smooth but that of B has a friction coefficient of 0.1 with the floor. Block A is moving at a speed of 10m/s towards B which is kept at rest. Find the distance travelled by B if(a)the collision is perfectly elastic and(b) the collision is perfectly inelastic | |
| 3890. |
Why is the change shown in the following figure a chemical change? |
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Answer» Why is the change shown in the following figure a chemical change? |
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| 3891. |
What are the differences between vapour and gas |
| Answer» What are the differences between vapour and gas | |
| 3892. |
10 The temperature of two bodies are measured as(20^° C t 0.5 C) and (40^° C 0.4^° C). Thetemperature difference of two bodies with errorlimits, is(2) (20 t 0.9) C(4) (20 0.0) C(1) (20 + 0.1)C(3) (20 2.0)^° Cmovinalong straight |
| Answer» 10 The temperature of two bodies are measured as(20^° C t 0.5 C) and (40^° C 0.4^° C). Thetemperature difference of two bodies with errorlimits, is(2) (20 t 0.9) C(4) (20 0.0) C(1) (20 + 0.1)C(3) (20 2.0)^° Cmovinalong straight | |
| 3893. |
1 Kwh = 36 × ___ joules. |
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Answer» 1 Kwh = 36 × |
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| 3894. |
A gas is found to have a formula [CO]x . If its vapour density is 70, the value of x is |
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Answer» A gas is found to have a formula [CO]x . If its vapour density is 70, the value of x is |
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| 3895. |
Some models of room heaters have fan blowing air, instead of having just a heating coil and a reflector. Do you think this is a advantage? What mode of heat transfer is being used while blowing air in the above heater? |
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Answer» Some models of room heaters have fan blowing air, instead of having just a heating coil and a reflector. Do you think this is a advantage? What mode of heat transfer is being used while blowing air in the above heater? |
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| 3896. |
Figure shows a bulb with its different parts marked as 1, 2, 3, 4 and 5. Label these parts and specify their function. |
Answer» Figure shows a bulb with its different parts marked as 1, 2, 3, 4 and 5. Label these parts and specify their function. |
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| 3897. |
Question 20A glass tumbler containing hot water is kept in the freezer compartment of refrigerator (temperature < 0∘C). If you could measure the temperature of the content of the tumbler, which of the following graphs (Fig.1.2) would correctly represent the change in its temperature as a function of time. |
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Answer» Question 20 A glass tumbler containing hot water is kept in the freezer compartment of refrigerator (temperature < 0∘C). If you could measure the temperature of the content of the tumbler, which of the following graphs (Fig.1.2) would correctly represent the change in its temperature as a function of time.  |
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| 3898. |
When we imagine light as a ray, when a bulb is switched on light ray leaves it. However as we switch off it, there is no light ray is in the room. So does it mean that the bulb takes in all the light? |
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Answer» When we imagine light as a ray, when a bulb is switched on light ray leaves it. However as we switch off it, there is no light ray is in the room. So does it mean that the bulb takes in all the light? |
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| 3899. |
48.A pendulum having a bob of mass m is hanging in a ship sailing along the equator from east to west. When the ship is stationary with respect to water the tension in the string is T . (a) Find the speed of the ship due to rotation of the earth about its axis . (B) Find the difference between T and the earths attraction on the Bob. (C) If the ship sails at speed V , what is the tension in the string ? Angular speed of earths rotation is omega (w) and radius of the earth is R. |
| Answer» 48.A pendulum having a bob of mass m is hanging in a ship sailing along the equator from east to west. When the ship is stationary with respect to water the tension in the string is T . (a) Find the speed of the ship due to rotation of the earth about its axis . (B) Find the difference between T and the earths attraction on the Bob. (C) If the ship sails at speed V , what is the tension in the string ? Angular speed of earths rotation is omega (w) and radius of the earth is R. | |
| 3900. |
The time taken by two consecutive compressions or rarefactions to cross a fixed point is called the _____. |
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Answer» The time taken by two consecutive compressions or rarefactions to cross a fixed point is called the _____. |
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