MCQOPTIONS
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MCQOPTIONS
This section includes 281 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For which one of the following is capillarity not the reason? |
| A. | Blotting of ink |
| B. | Rising of underground water |
| C. | Spread a water drop on a cotton cloth |
| D. | Rising of water from the roots of a plant to its foliage |
| Answer» C. Spread a water drop on a cotton cloth | |
| 2. |
The clouds float in the atmosphere because of their low |
| A. | temperature |
| B. | velocity |
| C. | pressure |
| D. | density |
| Answer» E. | |
| 3. |
When a ship floats on water |
| A. | it displaces no water |
| B. | the mass of water displaced is equal to the mass of the ship |
| C. | the mass of water displaced is lesser than the mass of the ship |
| D. | the mass of water displaced is greater than the mass of the ship |
| Answer» C. the mass of water displaced is lesser than the mass of the ship | |
| 4. |
A book is kept on the surface of a table. If the gravitational pull of the earth on the book is the force of action, then the force of reaction is exerted by |
| A. | the book on the table |
| B. | the book on the earth |
| C. | the table on the book |
| D. | the table on the earth |
| Answer» D. the table on the earth | |
| 5. |
A body is thrown vertically upwards and then falls back on the ground. Its potential energy is maximum |
| A. | on the ground |
| B. | at the maximum height |
| C. | during the return journey |
| D. | both on the ground and at the maximum height |
| Answer» C. during the return journey | |
| 6. |
A jet engine works on the principle of conservation of |
| A. | linear momentum |
| B. | angular momentum |
| C. | energy |
| D. | mass |
| Answer» B. angular momentum | |
| 7. |
An iron ball weighing 10kg on the earth will weigh in space |
| A. | less than 10 kg |
| B. | more than 10 kg |
| C. | exactly 10 kg |
| D. | zero |
| Answer» E. | |
| 8. |
In automatic wrist watches energy is provided by |
| A. | manual binding |
| B. | battery |
| C. | liquid crystal |
| D. | different movements of our hand |
| Answer» E. | |
| 9. |
A long jumper runs before jumping because he |
| A. | covers a greater distance |
| B. | maintains momentum conservation |
| C. | gains energy by running |
| D. | gains momentum |
| Answer» C. gains energy by running | |
| 10. |
When a body is stationary, then |
| A. | there is no force acting on it |
| B. | the body is in vacuum |
| C. | the force acting on it is not in contact with it |
| D. | the net forces acting on it balances each other |
| Answer» E. | |
| 11. |
A man is standing on a boat in still water. If he walks towards the shore, the boat will |
| A. | move towards the shore |
| B. | move away from the shore |
| C. | remain stationary |
| D. | sink |
| Answer» C. remain stationary | |
| 12. |
China wares are wraped in straw of paper before packing. This is the application of concept of |
| A. | impulse |
| B. | momentum |
| C. | acceleration |
| D. | force |
| Answer» B. momentum | |
| 13. |
Ventilators are provided at the top of room |
| A. | to bring oxygen for breathing |
| B. | so that sunlight may enter the room |
| C. | to maintain conventional currents to keep the air fresh in the room |
| D. | to provide an outlet for carbon dioxide |
| Answer» D. to provide an outlet for carbon dioxide | |
| 14. |
What happens when a heavy object and a light object are allowed to fall from the certain height in the absence of air |
| A. | heavy object reaches the ground later than the lighter object |
| B. | lighter object reaches the ground later than the heavier object |
| C. | both heavy and light objects reach the ground simultaneously |
| D. | None of these |
| Answer» D. None of these | |
| 15. |
An artificial satellite orbiting the earth does not fall down because the earth's attraction |
| A. | is balanced by the attraction of the moon |
| B. | vanishes at such distances |
| C. | is balanced by the viscous drag produced by the atmosphere |
| D. | produces the necessary acceleration of its motion in a curved path |
| Answer» E. | |
| 16. |
A block of ice is floating in a beaker containing liquid of specific gravity greater than one. When ice melts completely what happens to the level of liquid in the beaker? |
| A. | It will remain the same as before |
| B. | It will go down |
| C. | It will rise up |
| D. | It may or may not change depending upon size of beaker |
| Answer» D. It may or may not change depending upon size of beaker | |
| 17. |
A passenger in a moving train tosses a coin. If the coin falls behind him, the train must be moving with |
| A. | an acceleration |
| B. | a deceleration |
| C. | a uniform speed |
| D. | any of the above |
| Answer» B. a deceleration | |
| 18. |
One feels heavier in a lift when the lift |
| A. | is going down steadily |
| B. | just begins to go up |
| C. | is moving up steadily |
| D. | descends freely |
| Answer» C. is moving up steadily | |
| 19. |
The lift of an air plane is based on |
| A. | Torricelli's theorem |
| B. | Bernoulli's theorem |
| C. | Law of gravitation |
| D. | Conservation of linear momentum |
| Answer» C. Law of gravitation | |
| 20. |
The working principle of a washing machine is |
| A. | centrifugation |
| B. | dialysis |
| C. | reverse osmosis |
| D. | diffusion |
| Answer» B. dialysis | |
| 21. |
Which of the following instrument measure blood pressure ? |
| A. | Spherometer |
| B. | Stethoscope |
| C. | Sphygmomanometer |
| D. | Ammeter |
| Answer» D. Ammeter | |
| 22. |
The time period of a pendulum depends on |
| A. | the mass |
| B. | the length |
| C. | the time |
| D. | both (a) and (b) |
| Answer» C. the time | |
| 23. |
Which of the following is the smallest unit of length ? |
| A. | Micrometre |
| B. | Nanometre |
| C. | Angstrom |
| D. | Fermimetre |
| Answer» E. | |
| 24. |
The weight of any body is |
| A. | same at every place on earth/s surface |
| B. | maximum at poles |
| C. | more on equator |
| D. | more on mountains than in planes |
| Answer» C. more on equator | |
| 25. |
When a body is taken from the earth to the moon |
| A. | its weight increases |
| B. | its weight decreases |
| C. | its weight remains unchanged |
| D. | it becomes completely weightless |
| Answer» C. its weight remains unchanged | |
| 26. |
When a particle executing S.H.M. passed throug the mean position, it has: |
| A. | Minimum kinetic energy and maximum potential energy |
| B. | Maximum kinetic energy and minimum potential energy |
| C. | Maximum kinetic energy and maximum potential energy |
| D. | Minimum kinetic energy and minimum potential energy |
| Answer» C. Maximum kinetic energy and maximum potential energy | |
| 27. |
Who among the following gave the first experimental value of G? |
| A. | Newton |
| B. | Cavendish |
| C. | Galileo |
| D. | None of these |
| Answer» C. Galileo | |
| 28. |
Which of the following is most elastic? |
| A. | Rubber |
| B. | Wet clay |
| C. | Steel |
| D. | Plastic |
| Answer» D. Plastic | |
| 29. |
The escape velocity from the surface of the earth does not depend on |
| A. | mass of the earth |
| B. | mass of the body |
| C. | radius of the earth |
| D. | G |
| Answer» C. radius of the earth | |
| 30. |
The modulus of rigidity of a liquid is |
| A. | Zero |
| B. | 1 |
| C. | Infinite |
| D. | None of these |
| Answer» B. 1 | |
| 31. |
Kerosene oil rises up in the wick of lantern because of |
| A. | Diffusion of the oil through the wick |
| B. | Surface tension |
| C. | Buoyant force of air |
| D. | The gravitational pull of the wick |
| Answer» C. Buoyant force of air | |
| 32. |
When there are no external forces the shape of a liquid drop is determined by |
| A. | Surface tension of the liquid |
| B. | Density of the liquid |
| C. | Viscosity of air |
| D. | Temperature of air |
| Answer» B. Density of the liquid | |
| 33. |
If a liquid wets a solid surface, the angle of contact is |
| A. | 0 |
| B. | 90 |
| C. | Less than 90 |
| D. | Greater than 90 |
| Answer» D. Greater than 90 | |
| 34. |
A small and a large rain drops are falling through air |
| A. | The large drop moves faster |
| B. | The small drop moves faster |
| C. | Both moves with same speed |
| D. | None of the above |
| Answer» B. The small drop moves faster | |
| 35. |
A particle is executing S.H.M. Then the graph of acceleration as a function of displacement is |
| A. | Straight line |
| B. | Circle |
| C. | Hyperbola |
| D. | Ellipse |
| Answer» B. Circle | |
| 36. |
The weight of the body at the centre of the earth is |
| A. | Inginite |
| B. | Zero |
| C. | Slightly less than that at the equator |
| D. | Slightly move than that at the equator |
| Answer» C. Slightly less than that at the equator | |
| 37. |
A hole is made in the bottom of a container having water filled up to a height h. The velocity of water flowing out of the hole is |
| A. | Independent of h |
| B. | Proportional to h |
| C. | Proportional to h |
| D. | Proportional to h |
| Answer» C. Proportional to h | |
| 38. |
A liquid will not wet the surface of solid if the angle of contact is |
| A. | Acute |
| B. | Obtuse |
| C. | Zero |
| D. | / 2 |
| Answer» C. Zero | |
| 39. |
S.I unit of surface tension is |
| A. | |
| B. | m |
| C. | m |
| D. | m |
| E. | s |
| Answer» C. m | |
| 40. |
Which of the following is not the unit of energy |
| A. | Calorie |
| B. | Joule |
| C. | Electron volt |
| D. | Watt |
| Answer» E. | |
| 41. |
Light year is unit of |
| A. | Time |
| B. | Speed of light |
| C. | Distance |
| D. | Mass |
| Answer» D. Mass | |
| 42. |
The working principle of a washing machine is |
| A. | Centrifugation |
| B. | Dialysis |
| C. | Reverse osmosis |
| D. | Diffusion |
| Answer» B. Dialysis | |
| 43. |
If the earth were to skin faster, acceleration due to gravity at the poles |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | None of these |
| Answer» D. None of these | |
| 44. |
The time period of an artificial satellite in a circular orbit is independent of |
| A. | The mass of the satellite |
| B. | Radius of the orbit |
| C. | Mass of the earth and radius of the earth |
| D. | None of the above |
| Answer» B. Radius of the orbit | |
| 45. |
Bernoulli's theorem is applicable to |
| A. | Flow of liquids |
| B. | Viscousity |
| C. | Surface tension |
| D. | Static fluid pressure |
| Answer» B. Viscousity | |
| 46. |
Which of the following is not the unit of time? |
| A. | Parallactic second |
| B. | Micro second |
| C. | Leap year |
| D. | Solar day |
| Answer» B. Micro second | |
| 47. |
Which of the following physical quantities have the same dimensions? |
| A. | Angular momentum and work |
| B. | Work and torque |
| C. | Potential energy, linear momentum |
| D. | Kinetic energy, velocity |
| Answer» C. Potential energy, linear momentum | |
| 48. |
The most suitable unit for expressing nuclear radius is |
| A. | Micron |
| B. | Nanometre |
| C. | Fermi |
| D. | Angstrom |
| Answer» D. Angstrom | |
| 49. |
Temperature can be expressed as derived quantity in terms of any of the following |
| A. | Length and mass |
| B. | Mass and time |
| C. | Length, mass and time |
| D. | In terms of none |
| Answer» E. | |
| 50. |
One astronomical unit is the average distance between |
| A. | Earth and the Sun |
| B. | Earth and the Moon |
| C. | Jupiter and the Sun |
| D. | Pluto and the Sun |
| Answer» B. Earth and the Moon | |