MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the retina of the eye, the area having no sensory cells is called |
| A. | iris |
| B. | Blind spot |
| C. | cornea |
| D. | Dark spot |
| Answer» C. cornea | |
| 2. |
Rainbow is a natural phenomenon showing |
| A. | Reflection |
| B. | Refraction |
| C. | Dispersion |
| D. | Diversion |
| Answer» D. Diversion | |
| 3. |
If the angle of incidence of light falling on a plane mirror is 30degree, what will bethe angle of reflection? |
| A. | 90 degree |
| B. | 60 degree |
| C. | 30 degree |
| D. | 0 degree |
| Answer» D. 0 degree | |
| 4. |
If light falls perpendicularly on a plane mirror, what will be the angle in which it willbe reflected? |
| A. | 45 degree |
| B. | 90 degree |
| C. | 180 degree |
| D. | 360 degree |
| Answer» C. 180 degree | |
| 5. |
Which of the following is not luminous object? |
| A. | sun |
| B. | candle |
| C. | moon |
| D. | Tube light |
| Answer» D. Tube light | |
| 6. |
Whe we stand in front of our dressing table, our left hand seems to be right andright seems to be left. This is called |
| A. | Left-right confusion |
| B. | Lateral inversion |
| C. | Up -side down phenomenon |
| D. | mirage |
| Answer» C. Up -side down phenomenon | |
| 7. |
In our eye _______cells can sense colour |
| A. | Rod |
| B. | Cone |
| C. | Both rod and cone |
| D. | Neither rod nor cone |
| Answer» D. Neither rod nor cone | |
| 8. |
Light passing through a prism splits into its colour. This is called |
| A. | Dispersion |
| B. | Dissolution |
| C. | Division |
| D. | None of the above |
| Answer» B. Dissolution | |
| 9. |
To make a kaleidoscope we require |
| A. | Three plane mirrors |
| B. | Four plane mirrors |
| C. | Three glass sheets |
| D. | Four glass sheets |
| Answer» B. Four plane mirrors | |
| 10. |
An owl can see clearly at night but not day time because it has |
| A. | More rods and few cones |
| B. | Less rod and more cones |
| C. | More rods and more cone |
| D. | Less rods and less cones |
| Answer» B. Less rod and more cones | |
| 11. |
Which phenomenon is shown by the following diagram? |
| A. | Scattering of light |
| B. | Dispersion of light |
| C. | Primary Rainbow Formation |
| D. | Secondary Rainbow formation |
| Answer» E. | |
| 12. |
The mass of a photon with wavelength 3.6 Å is _____________ |
| A. | 3.139 X 10-33 kg |
| B. | 4.139 X 10-33 kg |
| C. | 5.139 X 10-33 kg |
| D. | 6.139 X 10-33 kg |
| Answer» E. | |
| 13. |
An electron makes a transition from n = 7 state to n = 3 state in the hydrogen atom. What is the frequency of the emitted photon? |
| A. | 2 X 1014 Hz |
| B. | 3 X 1014 Hz |
| C. | 4 X 1014 Hz |
| D. | 5 X 1014 Hz |
| Answer» C. 4 X 1014 Hz | |
| 14. |
The wavelength of a photon is 5000 Å. The energy of the photon is ___ |
| A. | 3.47 eV |
| B. | 2.41 eV |
| C. | 6.78 eV |
| D. | 2.12 eV |
| Answer» C. 6.78 eV | |
| 15. |
What is the frequency of a photon having energy 2.1 X 10-30 J? |
| A. | 3.1 X 1013 Hz |
| B. | 4.1 X 1013 Hz |
| C. | 5.1 X 1013 Hz |
| D. | 6.1 X 1013 Hz |
| Answer» C. 5.1 X 1013 Hz | |
| 16. |
Which theory was first to consider that light requires no medium for its propagation? |
| A. | Huygen’s Wave Theory of Light |
| B. | Maxwell’s Electromagnetic Theory |
| C. | Quantum theory of light |
| D. | Corpuscular theory |
| Answer» C. Quantum theory of light | |
| 17. |
Michaelson-Morley experiment ruled out the existence of __________ |
| A. | Luminiferous Ether |
| B. | Wave nature of light |
| C. | Particle nature of light |
| D. | Corpuscles |
| Answer» B. Wave nature of light | |
| 18. |
Huygen’s wave theory of light considered light to be ____________ |
| A. | Made up of particles |
| B. | Longitudinal Waves |
| C. | Transverse Waves |
| D. | Of dual nature |
| Answer» C. Transverse Waves | |
| 19. |
Who gave the quantum theory of light? |
| A. | Albert Einstein |
| B. | Heisenberg |
| C. | Michaelson Morley |
| D. | Max Planck |
| Answer» E. | |
| 20. |
How is light emitted? |
| A. | Klystron valves |
| B. | Radioactive decay of the nucleus |
| C. | Transmission of high energy electrons from an excited state to a lower state |
| D. | Acceleration of electrons |
| Answer» D. Acceleration of electrons | |