MCQOPTIONS
Saved Bookmarks
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. |
Which one of the waves have the longest wavelength |
| A. | Violet |
| B. | Red |
| C. | Blue |
| D. | Green |
| Answer» C. Blue | |
| 2. |
The amount of matter in a ball of steel is its |
| A. | Density |
| B. | Volume |
| C. | Weight |
| D. | Mass |
| Answer» E. | |
| 3. |
Universal gates are |
| A. | AND and OR |
| B. | OR and NOT |
| C. | NAND and NOR |
| D. | AND and XOR |
| Answer» D. AND and XOR | |
| 4. |
In superconductors, the energy gap is due to |
| A. | Electron-electron interaction |
| B. | Electron-phonon interaction |
| C. | Phonon-phonon interaction |
| D. | Electron-photon intercation |
| Answer» C. Phonon-phonon interaction | |
| 5. |
Thermocouple consists of |
| A. | Two dissimilar metals |
| B. | Two similar metals |
| C. | Metal and a semiconductor |
| D. | Metal and an insulator |
| Answer» B. Two similar metals | |
| 6. |
In a optical fibre cable, the signal is propagated along the |
| A. | Inner Core |
| B. | Cladding |
| C. | Both core and cladding |
| D. | Surface and cladding |
| Answer» B. Cladding | |
| 7. |
In quantum mechanics a particle is represented by a |
| A. | Wave |
| B. | Wave packet |
| C. | Particle |
| D. | None of the above |
| Answer» C. Particle | |
| 8. |
Thermal expansion of materials arises from |
| A. | Strong bonds |
| B. | Thermal vibrations |
| C. | Weak bonds |
| D. | Asymmetry of potential energy curve |
| Answer» E. | |
| 9. |
A body falling through a liquid acquires a steady velocity is known as |
| A. | End velocity |
| B. | Touch down velocity |
| C. | Terminal velocity |
| D. | Steady state velocity |
| Answer» D. Steady state velocity | |
| 10. |
Energy per unit volume is dimensionally equal to |
| A. | Pressure |
| B. | Force |
| C. | Density |
| D. | Work |
| Answer» B. Force | |
| 11. |
The value of coefficient of restitution in perfectly elastic collision |
| A. | 0 |
| B. | 0.5 |
| C. | 1 |
| D. | 2 |
| Answer» D. 2 | |
| 12. |
Eddy current is generated by |
| A. | Conduction |
| B. | Induction |
| C. | Convection |
| D. | Direct Current |
| Answer» C. Convection | |
| 13. |
The speed of sound in air depends on |
| A. | Frequency |
| B. | Temperature |
| C. | Wavelength |
| D. | None of the Above |
| Answer» C. Wavelength | |
| 14. |
What is the unit of Magnetic Induction |
| A. | Ohm |
| B. | Farad |
| C. | Volt |
| D. | Henry |
| Answer» E. | |
| 15. |
Which one is the unit of surface tension of a liquid |
| A. | newton /m2 |
| B. | electron volt /cm2 |
| C. | joule/ mm |
| D. | None of the above |
| Answer» C. joule/ mm | |
| 16. |
Of the earth syddenly stop rotating, the value of "g" will be |
| A. | Same |
| B. | Increase |
| C. | Decrease |
| D. | Become Zero |
| Answer» B. Increase | |
| 17. |
For a freely falling body, the sum of kinetic energy and potential energy is always |
| A. | Zero |
| B. | Unity |
| C. | Same |
| D. | Variable |
| Answer» D. Variable | |
| 18. |
When a body is accelerated, then the velocity will be also |
| A. | Increase |
| B. | Decrease |
| C. | Constant |
| D. | None of the above |
| Answer» B. Decrease | |
| 19. |
The three famous law of Kepler is related to |
| A. | Optics |
| B. | Speed |
| C. | Oscillations |
| D. | Planetary Motion |
| Answer» E. | |
| 20. |
ball pen function on the principle of |
| A. | Viscosity |
| B. | Capillarity |
| C. | Gravity |
| D. | Atmospheric pressure |
| Answer» D. Atmospheric pressure | |
| 21. |
The tidal waves on sea is mainly due to |
| A. | Gravitational Effect of Moon on Earth |
| B. | Gravitational Effect of Sun on Earth |
| C. | Gravitational Effect of Earth on Moon |
| D. | None of the above |
| Answer» B. Gravitational Effect of Sun on Earth | |
| 22. |
The unit of force is a |
| A. | Derived Unit |
| B. | Basic Unit |
| C. | Fundamental Unit |
| D. | None of the above |
| Answer» B. Basic Unit | |
| 23. |
The word "Physics" comes from the Greek word |
| A. | Phiji |
| B. | Fusis |
| C. | Phusik |
| D. | None of the above |
| Answer» C. Phusik | |
| 24. |
If the distance between Sun and Earth becomes double, then the gravitational force on Earth will be |
| A. | Double |
| B. | Same |
| C. | Half |
| D. | One Fourth |
| Answer» E. | |
| 25. |
In 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 | |
| 26. |
When all the forces and torques are balanced in a mechanical body it is said to be in |
| A. | Equilibrium |
| B. | Static |
| C. | Buoyancy |
| D. | None of the above |
| Answer» B. Static | |
| 27. |
Charles's law is based on |
| A. | Solid |
| B. | Liquid |
| C. | Gas |
| D. | None of the above |
| Answer» D. None of the above | |
| 28. |
Infrasonic sound has a frequency lower than |
| A. | 5 Hz |
| B. | 15 Hz |
| C. | 20 Hz |
| D. | 32 Hz |
| Answer» D. 32 Hz | |
| 29. |
The SI unit for measuring work and energy is |
| A. | Joule |
| B. | Watt |
| C. | Farad |
| D. | Ohm |
| Answer» B. Watt | |
| 30. |
Ultrasound devices operate with minimum frequency from |
| A. | 20kHz |
| B. | 35 kHz |
| C. | 45 kHz |
| D. | 60 kHz |
| Answer» B. 35 kHz | |
| 31. |
Who is known as the 'father of quantum theory' |
| A. | Albert Einstein |
| B. | Max Planck |
| C. | Werner Heisenberg |
| D. | Ernest Rutherford |
| Answer» C. Werner Heisenberg | |
| 32. |
The speed of sound travel fastest through |
| A. | Liquid |
| B. | Solid |
| C. | Gas |
| D. | None of the above |
| Answer» C. Gas | |
| 33. |
Which one is not a part of Kepler's Law |
| A. | Law of orbits |
| B. | Law of areas |
| C. | Law of speed |
| D. | Law of periods |
| Answer» D. Law of periods | |
| 34. |
What is the gravity of moon as compared to the Earth |
| A. | 1/4 th of Earth |
| B. | 1/5 th of Earth |
| C. | 1/6 th of Earth |
| D. | 1/8 th of Earth |
| Answer» D. 1/8 th of Earth | |
| 35. |
Who gave black hole theory |
| A. | Albert Einstein |
| B. | Stephen Hawking |
| C. | Isaac Newton |
| D. | None of the above |
| Answer» C. Isaac Newton | |
| 36. |
The unit of intensity of electric field is |
| A. | N/c |
| B. | N/m |
| C. | J/c |
| D. | volt |
| Answer» B. N/m | |
| 37. |
The energy of a photon varies directly with its |
| A. | Wave length |
| B. | Frequency |
| C. | Speed |
| D. | None of the above |
| Answer» C. Speed | |
| 38. |
Who discovered X-ray |
| A. | Marie Curie |
| B. | Pierre Curie |
| C. | Wilhelm Rontgen |
| D. | Ernest Rutherford |
| Answer» D. Ernest Rutherford | |
| 39. |
According to the quantum theory of light, the energy of light is carried in discrete units are called |
| A. | Photoelectrons |
| B. | Protons |
| C. | Electrons |
| D. | Photons |
| Answer» E. | |
| 40. |
Which one of the following ray has minimum wavelength |
| A. | Gamma ray |
| B. | Cosmic ray |
| C. | Utraviolet ray |
| D. | X-rays |
| Answer» B. Cosmic ray | |
| 41. |
In SONAR which kind of wave is used |
| A. | Infrasonic |
| B. | Ultrasonic |
| C. | Radio |
| D. | Audible sound |
| Answer» C. Radio | |
| 42. |
Which one type of radiation has the longest wave length |
| A. | Infrared |
| B. | Ultraviolet |
| C. | X-ray |
| D. | Radio Wave |
| Answer» E. | |
| 43. |
The velocity of the sound is highest in |
| A. | Metal |
| B. | Air |
| C. | Water |
| D. | Vacuum |
| Answer» B. Air | |
| 44. |
Hertz is the SI unit of |
| A. | Weight |
| B. | Power |
| C. | Pressure |
| D. | Frequency |
| Answer» E. | |
| 45. |
Light from Sun reaches Earth in approximately |
| A. | 3 minutes |
| B. | 8 minutes |
| C. | 10 minutes |
| D. | 12 minutes |
| Answer» C. 10 minutes | |
| 46. |
One light year is equal to |
| A. | 2 trillion miles |
| B. | 6 trillion miles |
| C. | 8 trillion miles |
| D. | 9 trillion miles |
| Answer» C. 8 trillion miles | |
| 47. |
What is the size of Electron as comapared to Proton and Neutron |
| A. | 1/355 |
| B. | 1/1236 |
| C. | 1/1836 |
| D. | 1/1923 |
| Answer» D. 1/1923 | |
| 48. |
Proton carry a |
| A. | Positive Charge |
| B. | Negative Charge |
| C. | Variable Charge |
| D. | Neutral Charge |
| Answer» B. Negative Charge | |
| 49. |
Electrons carry a |
| A. | Positive Charge |
| B. | Negative Charge |
| C. | Variable Charge |
| D. | Neutral Charge |
| Answer» C. Variable Charge | |
| 50. |
Which color deviates highest when passing through a Prism |
| A. | Indigo |
| B. | Green |
| C. | Violet |
| D. | Orange |
| Answer» D. Orange | |