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MCQOPTIONS
This section includes 1292 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 901. |
A boy raises a box with a weight of 120N through a height of 2 m. The work done by him is_x005F_x000D_ |
| A. | 60 J |
| B. | 120 J |
| C. | 240 J |
| D. | 180 J |
| Answer» D. 180 J | |
| 902. |
A boy is swinging a ball attached to a string in a horizotal circle. If the string snaps |
| A. | the ball will travel towards the center of the circle and fall down |
| B. | it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down |
| C. | it will fall down at the same place where the string breaks |
| D. | None of these |
| Answer» C. it will fall down at the same place where the string breaks | |
| 903. |
A boy is swinging a ball attached to a string in a horizontal circle.If the string snaps |
| A. | the ball will travel towards the center of the circle and fall down |
| B. | it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down |
| C. | it will fall down at the same place where the string breaks |
| D. | none of these |
| Answer» C. it will fall down at the same place where the string breaks | |
| 904. |
A body of mass 6 kg accelerates from 6 m/s to 18 m/s in 3 seconds due to the application of a force on it. Calculate the magnitude of this force (in N)._x005F_x000D_ |
| A. | 48 |
| B. | 60 |
| C. | 24 |
| D. | 96 |
| Answer» D. 96 | |
| 905. |
A body of mass m moving with velocity 4 km/h collides with a body of mass 3 m at rest. Now the coalesced mass starts to move with a velocity of_x005F_x000D_ |
| A. | 4 km/h |
| B. | 4/3Â km/h |
| C. | 1Â km/h |
| D. | 2Â km/h |
| Answer» D. 2Â km/h | |
| 906. |
A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N). |
| A. | 40 |
| B. | 10 |
| C. | 20 |
| D. | 80 |
| Answer» C. 20 | |
| 907. |
A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/sq.s) |
| A. | 0J |
| B. | 200J |
| C. | 400J |
| D. | 100J |
| Answer» B. 200J | |
| 908. |
A body is initially moving with a velocity of 5 m/s. It undergoes an acceleration of 2 m/s2 for 4 seconds. Find the displacement (in m) of this body in these 4seconds. |
| A. | 4 |
| B. | 72 |
| C. | 36 |
| D. | 8 |
| Answer» D. 8 | |
| 909. |
A body of mass 18 kg is moving with a velocity of 6 m/s, find its momentum. |
| A. | 108 |
| B. | 4.5 |
| C. | 54 |
| D. | 9 |
| Answer» B. 4.5 | |
| 910. |
A body of mass 3 kg accelerates from 10 m/s to 20 m/s in 5 seconds due to the application of a force on it. Calculate the magnitude of this force (in N)._x005F_x000D_ |
| A. | 6 |
| B. | 18 |
| C. | 12 |
| D. | 36 |
| Answer» B. 18 | |
| 911. |
A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be____. |
| A. | 50J |
| B. | 30J |
| C. | 20J |
| D. | 40J |
| Answer» B. 30J | |
| 912. |
A body in motion essentially acquires |
| A. | Kinetic energy |
| B. | Potential energy |
| C. | Mechanical energy |
| D. | Heat energy |
| Answer» B. Potential energy | |
| 913. |
A body is initially moving with a velocity of 10 m/s. It undergoes an acceleration of 2 m/s2 for 5 seconds. Find the displacement (in m) of this body in these 5 seconds._x005F_x000D_ |
| A. | 25 |
| B. | 37.5 |
| C. | 50 |
| D. | 75 |
| Answer» E. | |
| 914. |
A body in equilibrium _______. |
| A. | can move with constant acceleration |
| B. | is always at rest |
| C. | can move with constant velocity |
| D. | can move with variable acceleration |
| Answer» D. can move with variable acceleration | |
| 915. |
A body has a weight W on the surface of Earth. What is its weight on a planet whose mass is 15 times that of Earth and a radius that is 4 times that of the earth? |
| A. | 15/4 W |
| B. | 16/9 W |
| C. | 16/7 W |
| D. | 16/15 W |
| Answer» E. | |
| 916. |
A bimetal made copper and iron strips welded together is straight at room temperature. It is held vertically with iron strip towards left and copper strip towards right. If this bimetal is heated , it will |
| A. | remain straight |
| B. | bend towards right |
| C. | bend towards left |
| D. | none of these |
| Answer» D. none of these | |
| 917. |
A bicyclist comes to a skidding stop in 10 m. During this process, the force on the bicycle due to the road is 200 N and is directly opposed to the motion. The work done by the cycle on the road is:_x005F_x000D_ |
| A. | -2000J |
| B. | 2000J |
| C. | 200J |
| D. | zero |
| Answer» E. | |
| 918. |
A boat at anchor is rocked by waves whose consecutive crests are 100 m apart. The wave velocity of the moving crests is 25 m/s. What is the frequency of rocking of the boat? |
| A. | 625 Hz |
| B. | 0.25 Hz |
| C. | 25 Hz |
| D. | 100 Hz |
| Answer» C. 25 Hz | |
| 919. |
A block of mass 10 kg accelerates uniformly from rest to a speed of 2 nits in 20 s. The average power developed in time interval of 0 to 20 seconds is :_x005F_x000D_ |
| A. | 1.5 W |
| B. | 0.5 W |
| C. | 2 W |
| D. | 1 W |
| Answer» E. | |
| 920. |
A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will |
| A. | increase |
| B. | decrease |
| C. | remains the same |
| D. | first decrease and then increase |
| Answer» C. remains the same | |
| 921. |
A balloon filled with hydrogen will |
| A. | continue going upwards uninterrupted |
| B. | reach a particular height and remain floating |
| C. | burst after reaching some height |
| D. | reach a particular height and start coming down |
| Answer» C. burst after reaching some height | |
| 922. |
A ball thrown up vertically returns to the ground after 10 second. Find the velocity with which it was thrown up? |
| A. | 120 m/s |
| B. | 100 m/s |
| C. | 600 m/s |
| D. | 60 m/s |
| Answer» C. 600 m/s | |
| 923. |
A ball thrown up vertically returns to the ground after 12.5 seconds. Find the velocity with which it was g=10 ms-2 thrown up._x005F_x000D_ |
| A. | 10Â ms-1 |
| B. | 125Â ms-1 |
| C. | 12.5Â ms-1 |
| D. | 65Â ms-1 |
| Answer» C. 12.5Â ms-1 | |
| 924. |
A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be ____. (take g = 10 m/s2) |
| A. | 35 m |
| B. | 25 m |
| C. | 45 m |
| D. | 125 m |
| Answer» B. 25 m | |
| 925. |
A ball rolling along the ground gradually slows down and finally comes to rest is due to ________. |
| A. | Friction |
| B. | Magnetic force |
| C. | Electrostatic force |
| D. | Muscular force |
| Answer» B. Magnetic force | |
| 926. |
A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of |
| A. | 18 m/s |
| B. | 25 m/s |
| C. | 30 m/s |
| D. | 36 m/s |
| Answer» D. 36 m/s | |
| 927. |
A ball of 0.1 kg is dropped from rest. When it falls through a distance of 2 m, the work done by the force of gravity is |
| A. | 0.98 J |
| B. | -0.98 J |
| C. | 1.96 J |
| D. | -1.96 J |
| Answer» D. -1.96 J | |
| 928. |
A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height of 2. m. During the collision, the per cent loss in the kinetic energy is |
| A. | 1 |
| B. | 0.25 |
| C. | 0.5 |
| D. | 0.75 |
| Answer» E. | |
| 929. |
A ball is thrown vertically upwards. Assuming the air resistance to be constant and cosiderable: |
| A. | the time of ascent < the time of descent |
| B. | the time of ascent > the time of descent |
| C. | the time of ascent = the time of descent |
| D. | none of these |
| Answer» B. the time of ascent > the time of descent | |
| 930. |
A ball is thrown vertically upward with a velocity of 20 m/s. After 3s, the magnitude of its displacement is (take g =10 m/s2)_x005F_x000D_  _x005F_x000D_ |
| A. | 10 m |
| B. | 15 m |
| C. | 25 m |
| D. | 20 m |
| Answer» C. 25 m | |
| 931. |
A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is: |
| A. | 150 J |
| B. | 100 J |
| C. | 50 J |
| D. | 75 J |
| Answer» B. 100 J | |
| 932. |
A 5 kg object is raised through a height of 4 m. The work done by the force of gravity acting on the object is (take g =Â 10Â m/s2)_x005F_x000D_ |
| A. | 200j |
| B. | 20j |
| C. | -20j |
| D. | -200j |
| Answer» E. | |
| 933. |
1kWH = .........J |
| A. | 3.6×10^-8 |
| B. | 3.6×10^-6 |
| C. | 3.6×10^8 |
| D. | 3.6×10^6 |
| Answer» E. | |
| 934. |
5.6 kwh =?_x005F_x000D_ |
| A. | 14.4 × 108J |
| B. | 14.4 × 106 J |
| C. | 20.16 × 106 J |
| D. | 14.4 × 105 J |
| Answer» D. 14.4 × 105 J | |
| 935. |
9800 joule of energy was spent to raise a mass of 80 kg. The mass was raised to a height of |
| A. | 15.0 m |
| B. | 10.5 m |
| C. | 12.5 m |
| D. | 22.5 m |
| Answer» D. 22.5 m | |
| 936. |
1kWh = ? |
| A. | 3.6 x 105 J |
| B. | 3.6 x 106 J |
| C. | 3.6 x 10-5 J |
| D. | 3.6 x 10-6 J |
| Answer» C. 3.6 x 10-5 J | |
| 937. |
1 pascal equals 1 ________________. |
| A. | NÂ m2 |
| B. | NÂ m-2 |
| C. | N m |
| D. | NÂ m-1 |
| Answer» C. N m | |
| 938. |
1 WH = |
| A. | 360 joules |
| B. | 36000 joules |
| C. | 3600 joules |
| D. | 36 joules |
| Answer» D. 36 joules | |
| 939. |
1.08 tonne = ? kg |
| A. | 10800 |
| B. | 108 |
| C. | 1080 |
| D. | 1.08 |
| Answer» D. 1.08 | |
| 940. |
1 watt is equal to 1 _____________x005F_x000D_ |
| A. | JÂ s-1_x005F_x000D_ |
| B. | JÂ s |
| C. | JÂ s-2 |
| D. | J |
| Answer» B. JÂ s | |
| 941. |
1 m/s equals ____________ km/hr |
| A. | 42491 |
| B. | 44332 |
| C. | 44334 |
| D. | 43221 |
| Answer» D. 43221 | |
| 942. |
___________ states that internal energy is a function of state and the increase in internal energy is equal to the sum of the heat supplied to system and work done by the system. |
| A. | First law of thermodynamics |
| B. | Hooke's Law |
| C. | The coulomb's law |
| D. | Faraday's Law |
| Answer» B. Hooke's Law | |
| 943. |
1 kW = ? |
| A. | 1000 W |
| B. | 10 W |
| C. | 100 W |
| D. | 10000 W |
| Answer» B. 10 W | |
| 944. |
1 kilowatt hour is the amount of electric energy consumed when 1 kilowatt power is used for 1 hour in an electric circuit. Express it in joules._x005F_x000D_ |
| A. | 6.3 x 106 J |
| B. | 6.3 x 105 J |
| C. | 3.6 x 106 J |
| D. | 4.6 x 106 J |
| Answer» D. 4.6 x 106 J | |
| 945. |
1 kWh = __________ × 106J._x005F_x000D_ |
| A. | 36 |
| B. | 3.6_x005F_x000D_ |
| C. | 6.4_x005F_x000D_ |
| D. | 64 |
| Answer» C. 6.4_x005F_x000D_ | |
| 946. |
Find the work done (in J) when a charge of 10 C moves across a potential difference of 2 V. |
| A. | 20 |
| B. | 5 |
| C. | 40 |
| D. | 10 |
| Answer» B. 5 | |
| 947. |
.......... never occurs singly in nature._x005F_x000D_ |
| A. | Force |
| B. | Momentum |
| C. | Velocity |
| D. | Pressure |
| Answer» B. Momentum | |
| 948. |
If an object travels in a straight line and its velocity increases or decreases by equal amounts in equal intervals of time, then the acceleration of the object is said to be ______________. |
| A. | linear |
| B. | uniform |
| C. | translational |
| D. | |
| Answer» C. translational | |
| 949. |
_______ optical data storage is a technology where data is stored in multiple layers in the optical disc. |
| A. | 3D |
| B. | 30D |
| C. | 300D |
| D. | 3000D |
| Answer» B. 30D | |
| 950. |
During the night, the direction of the wind would be from the __________________. |
| A. | valleys to the mountains_x005F_x000D_ |
| B. | mountains to the valleys |
| C. | land to the sea |
| D. | sea to the land |
| Answer» D. sea to the land | |