MCQOPTIONS
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MCQOPTIONS
This section includes 83 Mcqs, each offering curated multiple-choice questions to sharpen your GK knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the orbital velocity of the geostationary satellite? |
| A. | 3.08 km /s |
| B. | 6.66 km /s |
| C. | 4.15 km /s |
| D. | 2.78 km /s |
| Answer» B. 6.66 km /s | |
| 2. |
Boyle's Law holds good for any gas at |
| A. | Low temperature and high pressures |
| B. | Low temperature and low pressures |
| C. | High temperature and low pressures |
| D. | High temperature and high pressures |
| Answer» B. Low temperature and low pressures | |
| 3. |
The Choke is used with a tube light is basically |
| A. | An inductor |
| B. | A capacitor |
| C. | A transformer |
| D. | A resistor |
| Answer» B. A capacitor | |
| 4. |
The power of a lens is -2.0 D. Here D stands for ________. |
| A. | distance |
| B. | dilation |
| C. | dioptre |
| D. | degree |
| Answer» D. degree | |
| 5. |
Who discovered the principle of 'Law of Floating ? |
| A. | Galileo |
| B. | Archimedes |
| C. | Newton |
| D. | Writer Brothers |
| Answer» C. Newton | |
| 6. |
Who gave the principle of relativity? |
| A. | Einstein |
| B. | Archimedes |
| C. | Newton |
| D. | Pascal |
| Answer» B. Archimedes | |
| 7. |
Which of the following is the best conductor of heat? |
| A. | Leather |
| B. | Benzene |
| C. | Mercury |
| D. | Water |
| Answer» D. Water | |
| 8. |
The light is a: |
| A. | Transverse wave |
| B. | Longitudinal wave |
| C. | Both |
| D. | None |
| Answer» B. Longitudinal wave | |
| 9. |
An object weights the maximum in: |
| A. | Hydrogen |
| B. | Vacuum |
| C. | Air |
| D. | Water |
| Answer» C. Air | |
| 10. |
The measure of inductance is |
| A. | Henry |
| B. | Ohm |
| C. | Ampere |
| D. | Coulomb |
| Answer» B. Ohm | |
| 11. |
The shortest unit of length is: |
| A. | Angstroms |
| B. | Fermi meter |
| C. | Micron |
| D. | Nanometer |
| Answer» C. Micron | |
| 12. |
Who gave the theory of gravity? |
| A. | Isaac Newton |
| B. | John Adams |
| C. | Charles Newton |
| D. | Charles Babbage |
| Answer» B. John Adams | |
| 13. |
Which of the following is false with reference to a photo-voltaic cell? |
| A. | It can store light energy in the form of electrical energy |
| B. | It converts electric energy into light energy |
| C. | It is another name as solar cell |
| D. | It can be used as infra-red detectors |
| Answer» C. It is another name as solar cell | |
| 14. |
The velocity of sound in the air (vacuum) is: |
| A. | 110 m / sec |
| B. | 232 m / sec |
| C. | 331 m / sec |
| D. | 220 m / sec |
| Answer» D. 220 m / sec | |
| 15. |
The instrument that measures and records the relative humidity of air is: |
| A. | Hygrometer |
| B. | Hydrometer |
| C. | Lactometer |
| D. | Barometer |
| Answer» B. Hydrometer | |
| 16. |
Pressure is measured in terms of |
| A. | Mass and Density |
| B. | Work done |
| C. | Force and Area |
| D. | Force and Distance |
| Answer» D. Force and Distance | |
| 17. |
Which of the following laws is associated with the heating effect of electric current? |
| A. | Joule's law |
| B. | Ohm's law |
| C. | Faraday's law |
| D. | Newton's law |
| Answer» B. Ohm's law | |
| 18. |
An object of mass 13 kg is moving with a uniform velocity of 5 ms-1. What is the kinetic energy possessed by the object? |
| A. | 187.5 J |
| B. | 17.5 J |
| C. | 162.5 J |
| D. | 162.5 ms |
| Answer» D. 162.5 ms | |
| 19. |
Alum is used as: |
| A. | a disinfectant |
| B. | a purifier for water |
| C. | an analgesic |
| D. | a fertilizer |
| Answer» C. an analgesic | |
| 20. |
Seawater can be purified by the process of - |
| A. | filtration |
| B. | fractional distillation |
| C. | distillation |
| D. | evaporation |
| Answer» D. evaporation | |
| 21. |
When resistors are connected in series, then net resistance____. |
| A. | Increases |
| B. | Decreases |
| C. | Remains same |
| D. | None of these |
| Answer» B. Decreases | |
| 22. |
The unit of which physical quantity is not pascal? |
| A. | Moment of inertia |
| B. | Pressure |
| C. | Stress |
| D. | Young s modulus |
| Answer» B. Pressure | |
| 23. |
Fathometer is used to measure |
| A. | Earthquake |
| B. | Rain |
| C. | Depth of sea |
| D. | Sound intensity |
| Answer» D. Sound intensity | |
| 24. |
Which one of the following common devices works on the basis of the principle of mutual induction? |
| A. | Tubelight |
| B. | Transformer |
| C. | Photodiode |
| D. | LED |
| Answer» C. Photodiode | |
| 25. |
Maxwell is unit of |
| A. | Intensity of magnetization |
| B. | Permeability |
| C. | Magnetic flux |
| D. | Magnetic susceptibility |
| Answer» D. Magnetic susceptibility | |
| 26. |
When water is heated from 0 C to 4 C, its volume: |
| A. | first increases then decreases |
| B. | remains the same |
| C. | increases |
| D. | decreases |
| Answer» E. | |
| 27. |
Satellite is kept moving in its orbit around the Earth, it is due to |
| A. | Gravitational Force or lack of it |
| B. | Some other Forces |
| C. | Centrifugal Force |
| D. | Centripetal Force |
| Answer» E. | |
| 28. |
The velocity of wind is measured by |
| A. | Hydrometer |
| B. | Wind vane |
| C. | Barometer |
| D. | Anemometer |
| Answer» E. | |
| 29. |
How many calories are gained by drinking a glass of water? |
| A. | 25 |
| B. | 50 |
| C. | 0 |
| D. | 15 |
| Answer» D. 15 | |
| 30. |
An object is placed in front of a concave mirror at a point between its focus point and the centre of curvature. The image to be created will be: |
| A. | virtual and straight |
| B. | Virtual and opposite |
| C. | Real and opposite |
| D. | Real and straight |
| Answer» D. Real and straight | |
| 31. |
What is the most effective conductor of electricity? |
| A. | Gold |
| B. | Iron |
| C. | Silver |
| D. | Copper |
| Answer» D. Copper | |
| 32. |
The product of mass and velocity of an object is called- |
| A. | momentum |
| B. | acceleration |
| C. | volume |
| D. | density |
| Answer» B. acceleration | |
| 33. |
Mechanical Energy is: |
| A. | The energy release during mechanical work. |
| B. | The sum of kinetic energy and the potential energy of an object. |
| C. | Equal to the rate of doing work. |
| D. | The Energy absorbed during movement of a body. |
| Answer» C. Equal to the rate of doing work. | |
| 34. |
A 1 kg object is dropped from a height of 30 meters to the ground. The work done by the force of gravity will be |
| A. | 30 J |
| B. | 10 J |
| C. | 0.33 J |
| D. | 300 J |
| Answer» E. | |
| 35. |
The product of force and displacement is called |
| A. | Acceleration |
| B. | Work |
| C. | Momentum |
| D. | Weight |
| Answer» C. Momentum | |
| 36. |
An object starts moving in its steady state. It attains a speed of 5 m / s in 2 seconds. What will be its acceleration? |
| A. | 2.5 m/sec2 |
| B. | 2 m/sec2 |
| C. | 1 m/sec2 |
| D. | 0.4 m/sec2 |
| Answer» B. 2 m/sec2 | |
| 37. |
How is 'Power interpreted? |
| A. | Work done in energy transfer |
| B. | Working rate or energy transfer rate |
| C. | Work done in a minute |
| D. | Force applied to increase the load |
| Answer» C. Work done in a minute | |
| 38. |
Which is the force due to which the body is pulled towards the center of the earth? |
| A. | Gravitational force |
| B. | Mass |
| C. | Momentum |
| D. | impulsive force |
| Answer» B. Mass | |
| 39. |
The method of transmission of heat is- |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | All of these |
| Answer» E. | |
| 40. |
The value of the velocity of sound is the lowest. |
| A. | Solid |
| B. | Liquid |
| C. | Gases |
| D. | All of these |
| Answer» D. All of these | |
| 41. |
The length of a wire is L m. The length of the wire is pulled to 2L meters, now the resistance of the wire will be. |
| A. | double the earlier |
| B. | First four times |
| C. | One fourth of first |
| D. | will remain unchanged |
| Answer» C. One fourth of first | |
| 42. |
Kilowatt hour (KWH) unit is- |
| A. | Energy |
| B. | Power |
| C. | Electric charge |
| D. | Electrical current |
| Answer» B. Power | |
| 43. |
Household appliances based on thermal effect of electric current is- |
| A. | Electric heater |
| B. | Electric bulb |
| C. | Tubelight |
| D. | All of the above |
| Answer» E. | |
| 44. |
Refraction of light is responsible for: |
| A. | Shadow formation |
| B. | Twinkling of stars |
| C. | Blue color of the sky |
| D. | Rainbow |
| Answer» C. Blue color of the sky | |
| 45. |
Acceleration is |
| A. | Inversely proportional to force |
| B. | Directly proportional to force |
| C. | Directly proportional to mass |
| D. | Inversely proportional to mass |
| Answer» C. Directly proportional to mass | |
| 46. |
Weighing 1 kilogram is the weight. |
| A. | 1 N |
| B. | 10 N |
| C. | 9.8 N |
| D. | 9 N |
| Answer» D. 9 N | |
| 47. |
The velocity of light in vacuum or air is |
| A. | $$3 x 10^8$$ m / sec . |
| B. | $$2 x 10^4$$ m / sec . |
| C. | $$9 x 10^2$$ m / sec . |
| D. | $$3 x 10^11$$ m / sec . |
| Answer» B. $$2 x 10^4$$ m / sec . | |
| 48. |
The SI unit of mechanical power is: |
| A. | Newton - second |
| B. | Joule - second |
| C. | Joule |
| D. | Watt |
| Answer» E. | |
| 49. |
A wooden spoon is dipped in a cup of ice-cream, then its other end |
| A. | does not become cold |
| B. | becomes cold by the process of conduction |
| C. | becomes cold by the process of convection |
| D. | becomes cold by the process of radiation |
| Answer» B. becomes cold by the process of conduction | |
| 50. |
An ice block with a piece of lead embedded in it floats in water. If ice melts the water level |
| A. | Remains same |
| B. | Falls first and then rises |
| C. | Rises |
| D. | Falls |
| Answer» E. | |