Physics Light MCQs Quiz Test 4

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Physics MCQs Quiz For Entry Test



1. Which one of the followings can act approximately as a source of monochromatic light:

Neon lamp
Fluorescent tube
None of these
Sodium lamp (Answer)

2. Wavelength of red color as compared to that of violet color is:

Smaller (Answer)
Greater
None of these
Equal

3. A -------------- lens is used in the apparatus to get Newton's ring.

Convexo-concave
Plano-convex (Answer)
Plano-concave
Double convex

4. In Newton's rings apparatus, we also use:

Spectroscope
Any of these
Microscope (Answer)
Telescope

5. The central ring is bright in case of Newton's rings produced by:

None of above
Reflected light
Transmitted light (Answer)
Wedged light

6. Newton's ring are formed due to:

Interference (Answer)
Polarization
Magnetization
Diffraction

7. Light waves are:

Compressional waves
Longitudinal waves
Transverse waves (Answer)
None of them

8. Newton's rings are:

None of these
Rectangular
Spherical
Concentric circles (Answer)

9. Which of the following cannot be polarized:

X-rays
Sound waves (Answer)
Ultraviolet rays
Radio waves

10. Light has:

Dual nature (Answer)
Particle nature
None of them
Wave nature

11. Light waves are:

Electromagnetic waves (Answer)
None of above
Mechanical waves
Any of above

12. Maximum amount of light passes when polarize and analyzers are oriented such that they are:

Parallel (Answer)
None of these
Neither parallel nor crossed
Crossed

13. Which of the following proves that light waves are transverse in nature:

Interference
Polarization (Answer)
Diffraction
Refraction

14. Light which has the same property in all the directions of vibrations is called:

Unpolarized light (Answer)
Monochromatic light
None of these
Polarized light

15. Polarized light is the one which has its vibrations:
Parallel to the direction of propagation
In one direction only (Answer)
In all directions
None of these