MCQOPTIONS
Saved Bookmarks
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.
| 1. |
Mica is used in electrical appliances such as electric iron because mica is |
| A. | a good conductor of heat but a bad conductor of electricity |
| B. | a bad conductor of heat but a good conductor of electricity |
| C. | a good conductor of heat as well as electricity |
| D. | a bad conductor of heat as well as electricity |
| Answer» B. a bad conductor of heat but a good conductor of electricity | |
| 2. |
Optical fibre works on the |
| A. | principle of refraction |
| B. | total internal reflection |
| C. | scattering |
| D. | interference |
| Answer» C. scattering | |
| 3. |
Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation? |
| A. | Scattering |
| B. | Diffraction |
| C. | Interference |
| D. | Polarization |
| Answer» B. Diffraction | |
| 4. |
Stars which appear single to the naked eye but are double when seen through a telescope are |
| A. | novas and supernovas |
| B. | binaries |
| C. | asteroids |
| D. | quasars |
| Answer» C. asteroids | |
| 5. |
Mercury is commonly used as a thermometric fluid rather than water because |
| A. | specific heat of mercury is less than water |
| B. | specific heat of mercury is more than water |
| C. | mercury has greater visibility than water |
| D. | density of mercury is more than the water |
| Answer» D. density of mercury is more than the water | |
| 6. |
On a stationary sail boat, air is blown from a fan attached to the boat. The boat |
| A. | moves in opposite direction in which the air is blown |
| B. | does not move |
| C. | moves in the same direction in which air blows |
| D. | spins around |
| Answer» C. moves in the same direction in which air blows | |
| 7. |
Large astronomical telescopes always use as objective |
| A. | lens |
| B. | mirror |
| C. | combinations of lenses |
| D. | None of the above |
| Answer» D. None of the above | |
| 8. |
Identify the vector quantity from the following |
| A. | Heat |
| B. | Angular momentum |
| C. | Time |
| D. | Work |
| Answer» C. Time | |
| 9. |
Rainbow is due to |
| A. | absorption of sunlight in minute water droplets |
| B. | diffusion of sunlight through water droplets |
| C. | ionisation of water deposits |
| D. | refraction and reflection of sunlight by water droplets |
| Answer» E. | |
| 10. |
One should not connect a number of electrical appliances to the same power socket because |
| A. | this can damage the appliances due to overloading |
| B. | this can damage the domestic wiring due to overloading |
| C. | this can damage the electrical meter |
| D. | the appliance will not get full voltage |
| Answer» C. this can damage the electrical meter | |
| 11. |
An atom with more neutrons than protons is called |
| A. | Compound |
| B. | Element |
| C. | Isotope |
| D. | None of the above |
| Answer» D. None of the above | |
| 12. |
One watt-hour is equivalent to |
| A. | 6.3 x 103 J |
| B. | 6.3 x 10-7 J |
| C. | 3.6 x 103 J |
| D. | 3.6 x 10-3 J |
| Answer» D. 3.6 x 10-3 J | |
| 13. |
One nanometer is equal to |
| A. | 10-6m |
| B. | 10-8m |
| C. | 10-9m |
| D. | 10-5m |
| Answer» D. 10-5m | |
| 14. |
Isotopes of an element contain |
| A. | the same number of protons but different number of neutrons |
| B. | the same number of neutrons but different number of protons |
| C. | equal number of protons and electrons |
| D. | equal number of nucleons |
| Answer» B. the same number of neutrons but different number of protons | |
| 15. |
Intensity of sound has |
| A. | an object existence |
| B. | a subject existence |
| C. | no existence |
| D. | both subjective and objective existence |
| Answer» B. a subject existence | |
| 16. |
What is refractive index ? |
| A. | it is defined as the ratio of speed of light in the medium to the speed of light in vacuum. |
| B. | it is defined as the product of speed of light in medium and in vacuum. |
| C. | it is defined as the ratio of speed of light in vacuum to the speed of light in the medium . |
| D. | None of above |
| Answer» D. None of above | |
| 17. |
What is measured with the Nephometer?_x005F_x000D_ |
| A. | volume of rainfall |
| B. | Cloud volume and speed |
| C. | Salinity of Sea |
| D. | All options are correct. |
| Answer» C. Salinity of Sea | |
| 18. |
What is a property of most metals? |
| A. | Conductivity |
| B. | Malleability |
| C. | Luster |
| D. | All of the above |
| Answer» E. | |
| 19. |
What is another name for energy of motion? |
| A. | Motional energy |
| B. | Potential energy |
| C. | Kinetic energy |
| D. | Rotational energy |
| Answer» D. Rotational energy | |
| 20. |
What is impulse equal to? |
| A. | Change in momentum |
| B. | Change in force |
| C. | Change in velocity |
| D. | Change in acceleration |
| Answer» B. Change in force | |
| 21. |
What factors contribute to global winds? |
| A. | Coriolis Effect |
| B. | Convection Cells |
| C. | Uneven warming of the earth by the sun |
| D. | All of the above |
| Answer» E. | |
| 22. |
What happens to the ammeter reading when the length of the wire is doubled? |
| A. | It increases two times |
| B. | It decreases to one half |
| C. | It decreases to three-fourth |
| D. | It remains the same |
| Answer» C. It decreases to three-fourth | |
| 23. |
What happens to the Potential and Kinetic energies of a body as it falls down from a height? |
| A. | Its Potential energy decreases while its Kinetic energy increases |
| B. | There is no change in its Potential or Kinetic energy |
| C. | Its Potential and Kinetic energies decrease |
| D. | Its Potential energy increases while its Kinetic energy decreases |
| Answer» B. There is no change in its Potential or Kinetic energy | |
| 24. |
What does the symbol R in electricity stand for ? |
| A. | Resistance |
| B. | Resonance |
| C. | Refraction |
| D. | Rarefaction |
| Answer» B. Resonance | |
| 25. |
What does the slope of a velocity time graph represent? |
| A. | Acceleration |
| B. | Distance |
| C. | Speed |
| D. | Momentum |
| Answer» B. Distance | |
| 26. |
What does the kinetic energy (KE) of a moving body depend upon? |
| A. | Mass & its position |
| B. | Weight & its position |
| C. | Mass & acceleration |
| D. | Mass & velocity |
| Answer» E. | |
| 27. |
What does Coulomb's Law state? |
| A. | The magnitude of the force of attraction (or repulsion) between two point charges is inversely proportional to the product of quantity of the two charges as well as to the square of the distance between them._x005F_x000D_ |
| B. | The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and inversely proportional to the square of the distance between them._x005F_x000D_ |
| C. | The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and directly proportional to the square of the distance between them._x005F_x000D_ |
| D. | The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and to the square of the distance between them. |
| Answer» C. The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and directly proportional to the square of the distance between them._x005F_x000D_ | |
| 28. |
What are the two kinds of Rotatory motion? |
| A. | Spin and Vibrational motion |
| B. | Spin and Projectile motion |
| C. | Spin and Orbital motion |
| D. | Spin and Translatory motion |
| Answer» D. Spin and Translatory motion | |
| 29. |
What are the particles emitted by radio active element after 3 consequtive disintegrations? |
| A. | 2 alpha 1 beta |
| B. | 1 alpha 1 beta |
| C. | 2 beta 1 alpha |
| D. | 2 beta 2 alpha |
| Answer» D. 2 beta 2 alpha | |
| 30. |
What causes brownian motion in colloids? |
| A. | coagulation of particles and the dispersed phase |
| B. | erratic flashes of light |
| C. | molecules of the dispersion medium colliding with dispersed phase particles |
| D. | All the above |
| Answer» D. All the above | |
| 31. |
What device converts light energy to electrical energy? |
| A. | Photodiode |
| B. | Photovoltaic cell |
| C. | Thermocouple |
| D. | Heliostats |
| Answer» C. Thermocouple | |
| 32. |
What color does blue and yellow make? |
| A. | Green |
| B. | Black |
| C. | Red |
| D. | White |
| Answer» B. Black | |
| 33. |
Weight (W) of a body can be given by the formula |
| A. | W = mv |
| B. | W = mf |
| C. | W = ms |
| D. | W = mg |
| Answer» E. | |
| 34. |
We obtain average _____________ by dividing the total energy consumed by the total time taken._x005F_x000D_ |
| A. | force |
| B. | power |
| C. | torque |
| D. | momentum |
| Answer» C. torque | |
| 35. |
Weight of a body is maximum at the: |
| A. | Equator |
| B. | Pole |
| C. | Subtropics |
| D. | Tropics |
| Answer» C. Subtropics | |
| 36. |
Weight of a person at a height of 2R from the centre of the earth, where R is the radius of the earth _______. |
| A. | remains same |
| B. | becomes half |
| C. | becomes twice |
| D. | becomes oneÂ-fourth |
| Answer» E. | |
| 37. |
What among the following is FALSE about he Richter scale? |
| A. | It was developed by Charles Richter and Gutenberg in 1935 |
| B. | It is a logarithmic scale |
| C. | It can be measured using a seismometer |
| D. | Magnitude of 8-9 on a Richter scale means it is a micro earthquake |
| Answer» E. | |
| 38. |
We are able to walk on earth without slipping because of |
| A. | Gravitational force |
| B. | Frictional force |
| C. | Viscous force |
| D. | Centrifugal force |
| Answer» C. Viscous force | |
| 39. |
Water kept in an earthen pot is less cool on rainy days than in summer because during the rainy days |
| A. | the pores in the pot are closed |
| B. | rain water stops oozing out from the pores |
| C. | the water that oozes out does not evaporate quickely because of the large percent age of moisture in the air |
| D. | surface of the pot becomes damp |
| Answer» D. surface of the pot becomes damp | |
| 40. |
Water is more dense than cooking oil. |
| A. | 1 |
| B. | |
| C. | |
| D. | |
| Answer» B. | |
| 41. |
Water has maximum density at............ |
| A. | 0 C |
| B. | -15 C |
| C. | 4 C |
| D. | 15 C |
| Answer» D. 15 C | |
| 42. |
Washing machines and microwave oven are operated by _______________ embedded inside these gadgets. |
| A. | Satellites |
| B. | Electronic Device |
| C. | e-books |
| D. | Internet |
| Answer» C. e-books | |
| 43. |
Warm air is ______. |
| A. | heavier than cold air hence warm air rises up |
| B. | lighter than cold air hence warm air moves down |
| C. | lighter than cold air hence warm air rises up |
| D. | heavier than cold air hence warm air moves down |
| Answer» D. heavier than cold air hence warm air moves down | |
| 44. |
Visible light has a higher frequency than |
| A. | Radio waves |
| B. | X rays |
| C. | Ultra violet |
| D. | All the above |
| Answer» B. X rays | |
| 45. |
Velocity of a car does not depend on |
| A. | Speedometer |
| B. | Change in direction |
| C. | Change in speed |
| D. | Change in acceleration |
| Answer» B. Change in direction | |
| 46. |
Velocitation is the tendency to |
| A. | be traveling at a speed that is faster than perceived |
| B. | be traveling at a speed that is slower than perceived |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. be traveling at a speed that is slower than perceived | |
| 47. |
Upward force on a floating body is called _______. |
| A. | jerk |
| B. | buoyancy |
| C. | Archimedal force |
| D. | Anti-gravity |
| Answer» C. Archimedal force | |
| 48. |
Two vectors are said to be equal if |
| A. | only their magnitudes are same |
| B. | only their directions are same |
| C. | both magnitude and direction are same |
| D. | magnitudes are same but directions are opposite |
| Answer» D. magnitudes are same but directions are opposite | |
| 49. |
Unit of solid angle is |
| A. | degree |
| B. | radian |
| C. | steradian |
| D. | radian second |
| Answer» D. radian second | |
| 50. |
Unit of impedance is ___________. |
| A. | ohm |
| B. | henry |
| C. | tesla |
| D. | hertz |
| Answer» B. henry | |