MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the time taken by light to cover a distance from moon to earth ? |
| A. | 2 min 20 sec |
| B. | 8 min 20 sec |
| C. | 1 min 20 sec |
| D. | I hr 20 sec |
| Answer» D. I hr 20 sec | |
| 2. |
What does artificial gravity produced in an orbiting spaceship overcomes? |
| A. | Weight |
| B. | Weightlessness |
| C. | None of the above |
| D. | Mass |
| Answer» C. None of the above | |
| 3. |
When a ball drops onto the floor it bounces. Why does it bounce? |
| A. | The floor exerts a force on the ball during impact |
| B. | The floor heats up on impact |
| C. | The floor is perfectly fluid |
| D. | Newton's third law Implies that for every action, there is reaction |
| Answer» B. The floor heats up on impact | |
| 4. |
Which of the following device is fully duplex? |
| A. | Radio |
| B. | Mobile phone |
| C. | Walky-talky |
| D. | Loud Speaker |
| Answer» C. Walky-talky | |
| 5. |
At what position simple pendulum has zero acceleration? |
| A. | next |
| B. | Tangential |
| C. | Mean |
| D. | Vibration |
| Answer» D. Vibration | |
| 6. |
Why is the The blue of colour in the sky due to? |
| A. | Scattering |
| B. | Interference |
| C. | Reflection |
| D. | Diffraction |
| Answer» B. Interference | |
| 7. |
Where is the velocity of the sound greatest ? |
| A. | water |
| B. | air |
| C. | metal |
| D. | vacuum |
| Answer» D. vacuum | |
| 8. |
Which one of the following can help in reading an old written material which cannot be read easily? |
| A. | alpha rays |
| B. | gama rays |
| C. | infrared rays |
| D. | X-rays |
| Answer» D. X-rays | |
| 9. |
Which one of the following common devices works on the basis of the principle of mutual induction? |
| A. | Photodiode |
| B. | Tubelight |
| C. | Transformer |
| D. | LED |
| Answer» D. LED | |
| 10. |
How a galvanometer is converted into ammeter ? |
| A. | low resistant in parallel |
| B. | high resistant is series |
| C. | high resistant in parallel |
| D. | low resistant in series |
| Answer» B. high resistant is series | |
| 11. |
When a force is parallel to the direction of motion of the body, then work done on the body is? |
| A. | Maximum |
| B. | Minimum |
| C. | Infinite |
| D. | Zero |
| Answer» B. Minimum | |
| 12. |
What is the use of radiation in medical imaging and diagnosis called? |
| A. | Radiology |
| B. | Chemotherapy |
| C. | Irradiation |
| D. | Radiotherapy |
| Answer» B. Chemotherapy | |
| 13. |
What does a body possess which is covering equal displacements in equal interval of time ? |
| A. | Uniform acceleration |
| B. | Uniform velocity |
| C. | None of the above |
| D. | Variable velocity |
| Answer» D. Variable velocity | |
| 14. |
What does 2nd law of Newton gives definition to? |
| A. | Mass |
| B. | Velocity |
| C. | Acceleration |
| D. | Force |
| Answer» D. Force | |
| 15. |
What is the unit of Electric charge ? |
| A. | None of the above |
| B. | Volt |
| C. | Coulomb |
| D. | Newton |
| Answer» D. Newton | |
| 16. |
How can direction of angular displacement be found ? |
| A. | All of these |
| B. | Right hand rule |
| C. | Left hand rule |
| D. | Middle finger rule |
| Answer» C. Left hand rule | |
| 17. |
Why does Mirage happen? |
| A. | reflection of light |
| B. | refraction of light |
| C. | total diffraction of light |
| D. | total internal reflection of light |
| Answer» E. | |
| 18. |
How the cat survive fall from a height much more than human or any other animal ? |
| A. | None of the above |
| B. | has elastic bones |
| C. | has thick and elastic skin |
| D. | can immediately adjust itself to land on all four paws and absorbs the impact of fall by bending |
| Answer» E. | |
| 19. |
What is the change in the pitch of sound caused by relative motion of source and listener called ? |
| A. | Doppler's effect |
| B. | Accoustics |
| C. | None of these |
| D. | Laplace's correction |
| Answer» B. Accoustics | |
| 20. |
The chip used in the computer technology is made up of what? |
| A. | None of the above |
| B. | Calcium |
| C. | Silicon |
| D. | Matter |
| Answer» D. Matter | |
| 21. |
What is the mode of heat transfer from the sun to the earth? |
| A. | Radiation |
| B. | Convection |
| C. | conduction |
| D. | reflection |
| Answer» B. Convection | |
| 22. |
Which is the example of electromagnetic wave? |
| A. | All of these |
| B. | Heat waves |
| C. | T.V waves |
| D. | Light waves |
| Answer» B. Heat waves | |
| 23. |
When instantaneous and average speed of a body is equal then motion is said to be? |
| A. | Collinear motion |
| B. | Uniform motion |
| C. | Straight line motion |
| D. | Linear motion |
| Answer» C. Straight line motion | |
| 24. |
Which one is not produced by sound waves in the air? |
| A. | Reflection |
| B. | refraction |
| C. | Polarisation |
| D. | Diffraction |
| Answer» D. Diffraction | |
| 25. |
How many bones are there in human hand ? |
| A. | 21 bones |
| B. | 14 bones |
| C. | 27 bones |
| D. | 20 bones |
| Answer» D. 20 bones | |
| 26. |
What are the waves which propagate by the oscillation of material particles called ? |
| A. | Low |
| B. | Electrical |
| C. | Mechanical |
| D. | High |
| Answer» D. High | |
| 27. |
How is the duration of year affected if the radius of the Earth is made 1/4th ? |
| A. | 8 times |
| B. | 4 times |
| C. | 1/4 times |
| D. | 1/8 times |
| Answer» E. | |
| 28. |
Which of the following scientist first discovered the magnetic effect of an electric current? |
| A. | Gauss |
| B. | Oersted |
| C. | Faraday |
| D. | Henry |
| Answer» C. Faraday | |
| 29. |
Which one of the following remains constant while throwing the ball upward? |
| A. | Velocity |
| B. | Kinetic energy |
| C. | Force |
| D. | Acceleration |
| Answer» E. | |
| 30. |
Who measured the velocity of light accurately ? |
| A. | Michelson |
| B. | Young |
| C. | Huygens |
| D. | Newton |
| Answer» B. Young | |
| 31. |
What is the instrument specially designed for recording earthquake waves? |
| A. | Theodolite |
| B. | Sphygmomanometer |
| C. | Barometer |
| D. | Seismograph |
| Answer» E. | |
| 32. |
What is the melodious effect on our ear produces by the combination of two or more notes of the modern pop songs called? |
| A. | concord |
| B. | chords |
| C. | overtones |
| D. | beats |
| Answer» B. chords | |
| 33. |
What is one of the main function of the earth's ozone layer ? |
| A. | All of the above |
| B. | Prevent global warming |
| C. | Absorb pollution |
| D. | Filter out ultraviolet rays |
| Answer» E. | |
| 34. |
When is Angular acceleration produced? |
| A. | Variable velocity in a straight line. |
| B. | Accelerated circular motion. |
| C. | Constant speed in a circle. |
| D. | Uniform circular motion. |
| Answer» C. Constant speed in a circle. | |
| 35. |
Which of the following has the most penetration power? |
| A. | X-rays |
| B. | beta-particles |
| C. | alpha-particles |
| D. | gamma-particles |
| Answer» E. | |
| 36. |
What instrument is used for measurement of rainfall ? |
| A. | Rain gauge |
| B. | Altimeter |
| C. | Anemometer |
| D. | Caliper |
| Answer» B. Altimeter | |
| 37. |
What is the element abundantly present in the human body? |
| A. | Oxygen |
| B. | Carbon dioxide |
| C. | Hydrogen |
| D. | Plutonium |
| Answer» D. Plutonium | |
| 38. |
What enables us to write on the black board with chalk? |
| A. | Gravity |
| B. | Cohesion |
| C. | Viscosity |
| D. | Adhesion |
| Answer» E. | |
| 39. |
Which physical quantities are measured by diopter? |
| A. | Star light |
| B. | Sun light |
| C. | Lens optical power |
| D. | Moon light |
| Answer» D. Moon light | |
| 40. |
What is the device which converts the chemical energy into electrical energy? |
| A. | Battery |
| B. | Tesla |
| C. | Electric motor |
| D. | Generator |
| Answer» B. Tesla | |
| 41. |
Why a man can jumps higher on moon than on earth ? |
| A. | Greater value of g at moon |
| B. | smaller value of g at earth |
| C. | Smaller value of g at moon |
| D. | Greater value of g at earth |
| Answer» D. Greater value of g at earth | |
| 42. |
Which one of the following causes green house effect? |
| A. | Radio waves |
| B. | Cosmic rays |
| C. | Ultra-violet rays |
| D. | Infrared rays |
| Answer» E. | |
| 43. |
Which physical quantities are measured by dyne? |
| A. | Force |
| B. | Energy |
| C. | Magneto motive force |
| D. | Lens optical power |
| Answer» B. Energy | |
| 44. |
How can basic metals be converted into gold? |
| A. | Artificial nuclear radioactivity |
| B. | Beating |
| C. | Heating |
| D. | Chemical reaction |
| Answer» E. | |
| 45. |
Velocity of fluid decreases when the pressure is? |
| A. | Low |
| B. | High |
| C. | Constant |
| D. | Medium |
| Answer» C. Constant | |
| 46. |
What is the work done by a centripetal force during half rotation? |
| A. | Two |
| B. | One |
| C. | Zero |
| D. | Half |
| Answer» D. Half | |
| 47. |
What refers to an effect that influences all measurements of a particular quantity equally ? |
| A. | Human error |
| B. | Machine error |
| C. | None of the above |
| D. | Systematical error |
| Answer» E. | |
| 48. |
What is the focal length of convex lens ? |
| A. | maximum for yellow light |
| B. | shorter for blue light than for red |
| C. | the same for all the colours |
| D. | shorter for red light than for blue |
| Answer» C. the same for all the colours | |
| 49. |
What is the periodic alterations of sound between maximum and minimum loudness called? |
| A. | None of these |
| B. | Constructive Interference |
| C. | Beats |
| D. | Diffraction |
| Answer» D. Diffraction | |
| 50. |
Potassium nitrate is used in ___________ |
| A. | glass |
| B. | fertiliser |
| C. | medicine |
| D. | salt |
| Answer» C. medicine | |