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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.
| 901. |
If the speed of a body is 5 m/s. Find the time it would take to cover a distance of 6 km. |
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Answer» If the speed of a body is 5 m/s. Find the time it would take to cover a distance of 6 km. |
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| 902. |
There are 2 school bags A and B. Bag A is provided with a broader strap while bag B is provided with a thinner strap. For the same load, a school boy likes bag A as he is comfortable with it, but with bag B he develops a pain in his shoulders. This is because: |
Answer» There are 2 school bags A and B. Bag A is provided with a broader strap while bag B is provided with a thinner strap. For the same load, a school boy likes bag A as he is comfortable with it, but with bag B he develops a pain in his shoulders. This is because: |
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| 903. |
if in a photoelectric cell the wavelength of incident light is changed from 4000Ang to 3000Ang then change in stopping potential will b |
| Answer» if in a photoelectric cell the wavelength of incident light is changed from 4000Ang to 3000Ang then change in stopping potential will b | |
| 904. |
122.What is voltage drop.? |
| Answer» 122.What is voltage drop.? | |
| 905. |
If white ray falls on the system in the given way then how many colours will we see after all dispersion has happened? |
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Answer» If white ray falls on the system in the given way then how many colours will we see after all dispersion has happened?
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| 906. |
A heater joined in parallel with a 60 watt bulb is connected to the mains. If the 60 watt bulb is replaced by a 100 watt bulb, will the rate of heat produced by the heater remain the same in comparison to the first case?Do not reject it |
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Answer» A heater joined in parallel with a 60 watt bulb is connected to the mains. If the 60 watt bulb is replaced by a 100 watt bulb, will the rate of heat produced by the heater remain the same in comparison to the first case? Do not reject it |
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| 907. |
How do magnets lose their magnetic property? What can be done to keep them safe? [5 MARKS] |
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Answer» How do magnets lose their magnetic property? What can be done to keep them safe? [5 MARKS] |
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| 908. |
What do you mean by lateral inversion? |
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Answer» What do you mean by lateral inversion? |
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| 909. |
Repeated observations in an experiment gave the values 1.29, 1.33, 1.34, 1.35, 1.32,1.36, 1.30 and 1.33. Find the relative error. |
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Answer» Repeated observations in an experiment gave the values 1.29, 1.33, 1.34, 1.35, 1.32,1.36, 1.30 and 1.33. Find the relative error. |
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| 910. |
A particle of mass M is situated at the centre of a spherical shell of mass 2M and radius a. The magnitude of the gravitational potential at a point situated at a/3 distance from the centre, will be? |
| Answer» A particle of mass M is situated at the centre of a spherical shell of mass 2M and radius a. The magnitude of the gravitational potential at a point situated at a/3 distance from the centre, will be? | |
| 911. |
52. Two trains take 3 s to pass one another when going in the opposite but only 2.5 s if the speed of one is increased by 50% . What is the time one would take to pass the other when going in the same direction at their original speeds ? |
| Answer» 52. Two trains take 3 s to pass one another when going in the opposite but only 2.5 s if the speed of one is increased by 50% . What is the time one would take to pass the other when going in the same direction at their original speeds ? | |
| 912. |
three long straight parallel wires carrying currents are arranged as shown in the figure. The wire c carries a current of 5 A is so placed such that it experiences no force. The dis†an ce of wire C from wire D i |
| Answer» three long straight parallel wires carrying currents are arranged as shown in the figure. The wire c carries a current of 5 A is so placed such that it experiences no force. The dis†an ce of wire C from wire D i | |
| 913. |
Which among the following symbols correctly represents the given diagram? |
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Answer» Which among the following symbols correctly represents the given diagram? |
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| 914. |
Gaps are left in between rails while laying a railway track. Why? |
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Answer» Gaps are left in between rails while laying a railway track. Why? |
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| 915. |
Fans don’t talk, but it is possible to imagine that they do. What is it, then, that sounds like the fan’s chatter? |
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Answer» Fans don’t talk,
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| 916. |
A tap supplies water at 22^° C. A man takes 1 litre of water per minute at 37^° C from the gyeser. Find the power of the gyese |
| Answer» A tap supplies water at 22^° C. A man takes 1 litre of water per minute at 37^° C from the gyeser. Find the power of the gyese | |
| 917. |
Prove that if in a plane 2 projectiles are thrown simul†an eously in different directions. rajectory of one projectile w.r.t. the other appears to be straight . |
| Answer» Prove that if in a plane 2 projectiles are thrown simul†an eously in different directions. rajectory of one projectile w.r.t. the other appears to be straight . | |
| 918. |
The root mean square speeds at STP for thegases H,, N2, 0, and HBr are in the order: \lbrack1991\rbrack(a) H |
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Answer» The root mean square speeds at STP for thegases H,, N2, 0, and HBr are in the order: \lbrack1991\rbrack(a) H |
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| 919. |
What is electroplating? |
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Answer» What is electroplating? |
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| 920. |
A steel rod of diameter 1 cm is clamped firmly at each end, when its temperature is 25∘C, so that it cannot contract on cooling. The tension in the rod, at 0∘C is approximately, ( α=10−5/∘C, Y=2×1011 Nm−2 ) |
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Answer» A steel rod of diameter 1 cm is clamped firmly at each end, when its temperature is 25∘C, so that it cannot contract on cooling. The tension in the rod, at 0∘C is approximately, ( α=10−5/∘C, Y=2×1011 Nm−2 ) |
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| 921. |
4.A particle moves on a straight line such that product of its acceleration a and cube of velocity v is constant The distance moved by particle in time t is proportional to. |
| Answer» 4.A particle moves on a straight line such that product of its acceleration a and cube of velocity v is constant The distance moved by particle in time t is proportional to. | |
| 922. |
The arrangement to store two magnets is shown in the following. Which one of them is the correct arrangement? |
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Answer» The arrangement to store two magnets is shown in the following. Which one of them is the correct arrangement? |
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| 923. |
A car starting from rest, eccelarates at the rate f through a distance S, then continues at constant speed for time t and then decelelrates at the rate f/2 to come to rest. If total distance travelled is 15 s. Then |
| Answer» A car starting from rest, eccelarates at the rate f through a distance S, then continues at constant speed for time t and then decelelrates at the rate f/2 to come to rest. If total distance travelled is 15 s. Then | |
| 924. |
The weight of a boy is 500 N. The total area of the soles of his shoes is 125 cm2. Find the pressure he applies on the floor. |
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Answer» The weight of a boy is 500 N. The total area of the soles of his shoes is 125 cm2. Find the pressure he applies on the floor. |
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| 925. |
The number of ways one can arrange three identical capacitors to obtain distinct capacitances is |
| Answer» The number of ways one can arrange three identical capacitors to obtain distinct capacitances is | |
| 926. |
if a Ray of light is incident on a plane mirror making an angle of 90 degree with the surface of mirror the angle of reflection will be |
| Answer» if a Ray of light is incident on a plane mirror making an angle of 90 degree with the surface of mirror the angle of reflection will be | |
| 927. |
A point object is kept in between a concave mirror of focal length 10cm and a plane mirror facing each other. Find the distance of object from the plane mirror such that their first image coinside. Plane mirror is 15cm away from focus of concave mirror. |
| Answer» A point object is kept in between a concave mirror of focal length 10cm and a plane mirror facing each other. Find the distance of object from the plane mirror such that their first image coinside. Plane mirror is 15cm away from focus of concave mirror. | |
| 928. |
What is potacium permagnet |
| Answer» What is potacium permagnet | |
| 929. |
The ratio of thermal conductivity of two rods of different material is 5 : 4. The two rods of same area of cross-section and same thermal resistance will have the lengths in the ratio |
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Answer» The ratio of thermal conductivity of two rods of different material is 5 : 4. The two rods of same area of cross-section and same thermal resistance will have the lengths in the ratio |
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| 930. |
A person is s†an ding on road by holding an umbrella at right angle to the horizontal surface in order to protect himself from rain falling at a speed of 10m/s, and where as the velocity of wind is zero. Suddenly wind begins to blow at a speed of 20m/s , towards 30^0 south of west. |
| Answer» A person is s†an ding on road by holding an umbrella at right angle to the horizontal surface in order to protect himself from rain falling at a speed of 10m/s, and where as the velocity of wind is zero. Suddenly wind begins to blow at a speed of 20m/s , towards 30^0 south of west. | |
| 931. |
Ajay lives in a region with a hot climate. He wants to paint the outer walls of his house. Out of the four colour options, which colour will you suggest, considering the climate at his place? |
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Answer» Ajay lives in a region with a hot climate. He wants to paint the outer walls of his house. Out of the four colour options, which colour will you suggest, considering the climate at his place? |
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| 932. |
Temperature is a measurement of coldness or hotness of an object which law state this statement |
| Answer» Temperature is a measurement of coldness or hotness of an object which law state this statement | |
| 933. |
Which of the following is true regarding liquid pressure? |
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Answer» Which of the following is true regarding liquid pressure? |
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| 934. |
A vector is added to an equal and opposite vector of similar nature, forms a(2) Position vector(1) Unit vector(3Nul vector(4) Displacement vector |
| Answer» A vector is added to an equal and opposite vector of similar nature, forms a(2) Position vector(1) Unit vector(3Nul vector(4) Displacement vector | |
| 935. |
The linear speed of the tip of second arm of a clock is 'v'. The magnitude of change in its velocity in 30 seconds is |
| Answer» The linear speed of the tip of second arm of a clock is 'v'. The magnitude of change in its velocity in 30 seconds is | |
| 936. |
Which of the following plays an important role in the early warning system? |
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Answer» Which of the following plays an important role in the early warning system? |
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| 937. |
If an alternating current changes its direction frequently how does it reach from source of its origin to the sink at our houses? |
| Answer» If an alternating current changes its direction frequently how does it reach from source of its origin to the sink at our houses? | |
| 938. |
When the live wire and the neutral wire come in contact with each other in a circuit, it causes _________. |
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Answer» When the live wire and the neutral wire come in contact with each other in a circuit, it causes _________. |
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| 939. |
Which graph among the following represents uniform motion? |
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Answer» Which graph among the following represents uniform motion? |
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| 940. |
21.A train 50m long passes through a tunnel x m long at a speed of 30km per h in 36 sec what is the length of the tunnel? |
| Answer» 21.A train 50m long passes through a tunnel x m long at a speed of 30km per h in 36 sec what is the length of the tunnel? | |
| 941. |
Drawin your notebook the symbols to represent the following componentsof electrical circuits: connecting wires, switch in the ‘OFF’position, bulb, cell, switch in the ‘ON’ position, andbattery. |
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Answer» Draw |
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| 942. |
Once the reserve ___inside the cells is over, ___ and the circuit breaks. |
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Answer» Once the reserve |
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| 943. |
Select the correct statement related to heat:1) Heat is possessed by a body. 2) Hot water contains more heat as compared to cold water. 3) Heat is an energy which flows due to temperature differences.4) All of these |
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Answer» Select the correct statement related to heat: 1) Heat is possessed by a body. 2) Hot water contains more heat as compared to cold water. 3) Heat is an energy which flows due to temperature differences. 4) All of these |
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| 944. |
A body of mass 2.0 kg and density 8000 kg/m3 is completely immersed in a liquid of density 800 kg/m3. Find the force of buoyancy on it.(g=10 m/s2) |
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Answer» A body of mass 2.0 kg and density 8000 kg/m3 is completely immersed in a liquid of density 800 kg/m3. Find the force of buoyancy on it. |
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| 945. |
What will be the mirror half of the given image? |
Answer» What will be the mirror half of the given image? |
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| 946. |
32.Heat energy at constant rate is given to two substances P and Q. If variation of temperature (T) of substances with time (t) is as shown in figure, then select the correct statement. |
| Answer» 32.Heat energy at constant rate is given to two substances P and Q. If variation of temperature (T) of substances with time (t) is as shown in figure, then select the correct statement. | |
| 947. |
A particle moves with constant acceleration along a straight line starting from rest. The percentage increase in its displacement during the 4th second compared to that in 3rd second is(1) 33% (2) 40%(3) 60%(40 77% |
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Answer» A particle moves with constant acceleration along a straight line starting from rest. The percentage increase in its displacement during the 4th second compared to that in 3rd second is (1) 33% (2) 40% (3) 60% (40 77% |
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| 948. |
A piece of 'chalk' is going around a fixed axis 00' as shown in figure. The chalk does not rotate about its own axis in any fashion. What can be said about this motion of the chalk piece? |
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Answer» A piece of 'chalk' is going around a fixed axis 00' as shown in figure. The chalk does not rotate about its own axis in any fashion. What can be said about this motion of the chalk piece?
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| 949. |
Find electrovalency of AlCl3 and CaF2 |
| Answer» Find electrovalency of AlCl3 and CaF2 | |
| 950. |
(d) 25, Tai (o10. A truck travelling due north at 20 ms turns west and travelsat the same speed. The change in its velocity will be(a) 40 ms-1N-W(b) 20\surd 2 ms- N-W(c) 40 ms-1 S-W(d) 202 ms-1 S-W |
| Answer» (d) 25, Tai (o10. A truck travelling due north at 20 ms turns west and travelsat the same speed. The change in its velocity will be(a) 40 ms-1N-W(b) 20\surd 2 ms- N-W(c) 40 ms-1 S-W(d) 202 ms-1 S-W | |
