MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 754 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following substances posses the highest elasticity ? |
| A. | Rubber |
| B. | Steel |
| C. | Glass |
| D. | Copper |
| Answer» C. Glass | |
| 2. |
Which of the following types of force can do no work on the particle on which it acts ? |
| A. | frictional force |
| B. | gravitational force |
| C. | elastic force |
| D. | centripetal force |
| Answer» E. | |
| 3. |
Which of the following waves have smallest velocity in vacuum? |
| A. | Ultraviolet |
| B. | Sound |
| C. | Infra-Red |
| D. | Micro |
| Answer» C. Infra-Red | |
| 4. |
Which of the following will be a better shield against gamma rays ? |
| A. | Ordinary water |
| B. | Heavy water |
| C. | Lead |
| D. | Aluminum |
| Answer» D. Aluminum | |
| 5. |
Which one does not work according to resonance ? |
| A. | T.V |
| B. | Radio |
| C. | Microwave oven |
| D. | Bulb |
| Answer» E. | |
| 6. |
Which one has the greatest energy gap ? |
| A. | Semi conductor |
| B. | Conductor |
| C. | Metals |
| D. | Non metals |
| Answer» E. | |
| 7. |
Which one is a unit vector ? |
| A. | ??3 i^ + ??3 j^ + ??3 k^ |
| B. | 1/??3 i^ + 1/??3 j^ +1/ ??3 k^ |
| C. | ??3 / 3 i^ + ??3 / 3 j^ + ??3 / 3 k^ |
| D. | Both B and C are correct |
| Answer» E. | |
| 8. |
Which one is not a branch of physical sciences ? |
| A. | Chemistry |
| B. | Astronomy |
| C. | Geology |
| D. | Biology |
| Answer» E. | |
| 9. |
Which one is not a type of dynamic equilibrium ? |
| A. | Rotational equilibrium |
| B. | Translational equilibrium |
| C. | Static equilibrium |
| D. | Both A and C are corret answer |
| Answer» D. Both A and C are corret answer | |
| 10. |
Which one is not an example of adiabatic process ? |
| A. | rapid escape of air from a burst tyre |
| B. | rapid expansion of air |
| C. | conversion of water into ice in refrigerator |
| D. | cloud formation in the atmosphere |
| Answer» D. cloud formation in the atmosphere | |
| 11. |
Which one is not correct for a vector A= 2i+2j+3k ? |
| A. | Has direction 45° with an x-axis |
| B. | Has magnitude 2 |
| C. | Has magnitude 2 and direction °=45° with a y-axis |
| D. | Has magnitude -2 |
| Answer» E. | |
| 12. |
Which one is the best material for making connecting wires ? |
| A. | iron |
| B. | tungsten |
| C. | silver |
| D. | copper |
| Answer» E. | |
| 13. |
Which one is the correct relation for fundamental frequency of open and closed pipe ? |
| A. | fopen = 2 fclosed |
| B. | fclosed = 2fopen |
| C. | fopen = fclosed |
| D. | fopen = 1 / f closed |
| Answer» B. fclosed = 2fopen | |
| 14. |
Which one is the correct representation of the unit of pressure ? |
| A. | Newton/Meter2 |
| B. | newton/meter2 |
| C. | Newton/meter2 |
| D. | newton/Meter2 |
| Answer» C. Newton/meter2 | |
| 15. |
Which one is the dimensionally correct equation ? |
| A. | f=vt |
| B. | S=Vit+1/2at2 |
| C. | V=St |
| D. | V=f/t |
| Answer» C. V=St | |
| 16. |
Which one is the derived quantity in SI units _____________? |
| A. | Electric current |
| B. | Electric charge |
| C. | Plane angle |
| D. | Amount of substance |
| Answer» C. Plane angle | |
| 17. |
Which one is the highest power multiple ? |
| A. | Giga |
| B. | Beta |
| C. | Mega |
| D. | Deca |
| Answer» B. Beta | |
| 18. |
Which one is true for internal energy ? |
| A. | It is sum of all forms of energies associated with molecules of a system |
| B. | It is a state function of a system |
| C. | It is proportional to transnational K.E of the molecules |
| D. | All are correct |
| Answer» E. | |
| 19. |
Which one is venturi relation ? |
| A. | P1 – P2 = 1/2 ρV22 |
| B. | V2 = 2g (h1-h2) |
| C. | P = 1 /2ρV2 = ρgh = constant |
| D. | A1 V1 = A2 V2 = constant |
| Answer» B. V2 = 2g (h1-h2) | |
| 20. |
Which one of following band is completely filled in case of conductors ? |
| A. | Conduction band |
| B. | Fermi band |
| C. | Valence band |
| D. | Forbidden band |
| Answer» B. Fermi band | |
| 21. |
Which one of following postulate is in accordance with the Rutherfords model ? |
| A. | continuous spectra for atoms |
| B. | discrete spectra for atoms |
| C. | either continuous nor discrete |
| D. | no spectrum |
| Answer» B. discrete spectra for atoms | |
| 22. |
Which one of the following bulbs has the least resistance ? |
| A. | 100 watt |
| B. | 200 watt |
| C. | 300 watt |
| D. | 60 watt |
| Answer» D. 60 watt | |
| 23. |
Which one of the following cannot be polarized ? |
| A. | radio waves |
| B. | ultraviolot rays |
| C. | X-rays |
| D. | sound waves |
| Answer» E. | |
| 24. |
Which one of the following has the largest energy content ? |
| A. | 103 photons of wavelength 2 pm (γ-rays) |
| B. | 102 photons of wavelength 1nm (x-rays) |
| C. | 106 photons of wavelength 50?m (infrared) |
| D. | 106 photons of wavelength 200nm (UV) |
| Answer» B. 102 photons of wavelength 1nm (x-rays) | |
| 25. |
Which one of the following has the greatest energy gap ? |
| A. | insulator |
| B. | conductor |
| C. | semi conductor |
| D. | any of above |
| Answer» B. conductor | |
| 26. |
Which one of the following is nearly monochromatic light ? |
| A. | light form fluorescent tube |
| B. | light form neon lamp |
| C. | light form sodium lamp |
| D. | light form simple lamp |
| Answer» D. light form simple lamp | |
| 27. |
Which one of the following is massless? |
| A. | Proton |
| B. | Electron |
| C. | Neutron |
| D. | Photon |
| Answer» E. | |
| 28. |
Which one of the following is not a donor impurity ? |
| A. | antimony |
| B. | phosphorus |
| C. | aluminium |
| D. | arsenic |
| Answer» D. arsenic | |
| 29. |
Which one of the following is not a radioactive element ? |
| A. | Cadmium |
| B. | Thorium |
| C. | Radium |
| D. | Uranium |
| Answer» B. Thorium | |
| 30. |
Which one of the following is not an electromechanical instrument ? |
| A. | galvanometer |
| B. | voltmeter |
| C. | ammeter |
| D. | AC transformer and DC generator |
| Answer» E. | |
| 31. |
Which one of the following is not vector quantity _______? |
| A. | Acceleration |
| B. | Displacement |
| C. | Speed |
| D. | Force |
| Answer» D. Force | |
| 32. |
Which one of the following material is most suitable for making core of an electromagnet ? |
| A. | air |
| B. | steel |
| C. | Cu-Ni alloy |
| D. | soft iron |
| Answer» E. | |
| 33. |
Which one of the following materials is useful for making bulb filaments ? |
| A. | constantan |
| B. | nichrome |
| C. | copper |
| D. | tungsten |
| Answer» E. | |
| 34. |
Which one of the following physical quantities does not have the dimensions of force per unit area ? |
| A. | Stress |
| B. | Strain |
| C. | Youngs modulus |
| D. | Pressure |
| Answer» C. Youngs modulus | |
| 35. |
Which one of the following properties of light does not change with the nature of the medium ? |
| A. | velocity |
| B. | wavelength |
| C. | amplitude |
| D. | frequency |
| Answer» E. | |
| 36. |
Which one of the following possesses greater penetration power ? |
| A. | α-rays |
| B. | β-rays |
| C. | γ-rays |
| D. | Neutron-rays |
| Answer» E. | |
| 37. |
Which one of the following radiation possesses maximum penetrating power ? |
| A. | X-rays |
| B. | B-rays |
| C. | γ-rays |
| D. | All have the equal penetrating power |
| Answer» D. All have the equal penetrating power | |
| 38. |
Which one of the following radiations has the strongest photon? |
| A. | T.V waves |
| B. | Microwaves |
| C. | X-rays |
| D. | γ-rays |
| Answer» E. | |
| 39. |
Which one of the following radiations possesses maximum velocity ? |
| A. | α-rays |
| B. | β-rays |
| C. | γ-rays |
| D. | All of above have the same speed |
| Answer» D. All of above have the same speed | |
| 40. |
Which phenomena can be applied to estimate the velocity of star with respect to earth ___________________? |
| A. | Dopplers effect |
| B. | Interference of waves |
| C. | Beats phenomena |
| D. | All of these |
| Answer» B. Interference of waves | |
| 41. |
Which quantity is a state function_______________? |
| A. | internal energy |
| B. | heat supply |
| C. | pressure |
| D. | volume |
| Answer» B. heat supply | |
| 42. |
Which shows the correct relation between time of flight T and maximum height H ? |
| A. | H=gT2/8 |
| B. | H=8T2/g |
| C. | H=8g/T2 |
| D. | H=gT2 |
| Answer» B. H=8T2/g | |
| 43. |
While measuring the unknown resistance the help of slide wire bridge a greatest accuracy can be achieved when__________________? |
| A. | a most sensitive galvanometer is used |
| B. | a steady voltage cell is used |
| C. | the balance point is close to the middle of the wire |
| D. | a high resistance box is used in one of its gap |
| Answer» D. a high resistance box is used in one of its gap | |
| 44. |
Who discovered the inverse square law for gravity ? |
| A. | Einstein |
| B. | Galileo |
| C. | Newtons |
| D. | Plank |
| Answer» D. Plank | |
| 45. |
Who were the pioneers of Physics? |
| A. | Egyptians |
| B. | Greek |
| C. | Latin |
| D. | Persians |
| Answer» C. Latin | |
| 46. |
Why Ballistic missile fails in some circumstances of precision ? |
| A. | due to their shape |
| B. | due to air resistance |
| C. | due to angle of projection |
| D. | all of these |
| Answer» C. due to angle of projection | |
| 47. |
Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ? |
| A. | Chargeless |
| B. | Massless |
| C. | Highly penetrating |
| D. | All of above |
| Answer» D. All of above | |
| 48. |
Why should a resistance be introduced in a circuit in series deliberately ? |
| A. | to increase current |
| B. | to decrease current |
| C. | to control current |
| D. | just to give a good look to circuit |
| Answer» C. to control current | |
| 49. |
With increase in temperature the electrical conductivity of intrinsic semi conductor___________________? |
| A. | Decreases |
| B. | Increases |
| C. | Remains same |
| D. | First increases then decreases |
| Answer» C. Remains same | |
| 50. |
Work done by the force of friction is____________________? |
| A. | always positive |
| B. | always negative |
| C. | positive only for small frictional force |
| D. | positive only for large frictional force |
| Answer» C. positive only for small frictional force | |