Physics

1st Year Physics Chapter 9 MCQs

If you are looking for the 1st Year Physics Chapter 9 MCQs with Answers Physical Optics, then here you will find them. This chapter is about light, its properties, and its association with wave nature. The first concept is the wavefront which is the surface where all the points have the same face of vibration. Huygens’s principle is about the determination of the shape and location of the new wavefront. Then there is the concept of interference of light waves. Young’s double-slit experiment is very important because that shows the phenomenon of interference. Then there are some applications including Newton’s rings and Michelson’s Interferometer. The last topic is polarization. So, let’s start preparing for this chapter’s MCQs. You can solve the Quiz given below.

1st Year Physics Chapter 9 MCQs with Answers Physical Optics

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Physics Chapter 9

1 / 20

Newton’s rings are formed due to

2 / 20

In Young’s double-slit experiment, the fringe spacing is equal to

3 / 20

𝑑 sin 𝜃 = 𝑚𝜆 is called:

4 / 20

2𝑑 sin 𝜃 = 𝑚𝜆 is called:

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A light ray traveling from denser to rarer medium suffers a phase change of:

6 / 20

A light ray traveling from rarer to denser medium suffers a phase change of:

7 / 20

Soap film exhibit brilliant colors in sunlight due to:

8 / 20

The appearance of Color in thin films is due to

9 / 20

When Newton’s rings are observed with transmitted light, the central spot is:

10 / 20

When Newton’s rings are observed with reflected light, the central spot is:

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The center of Newton’s rings is due to destructive interference:

12 / 20

In Young's double-slit experiment, if white light is used:

13 / 20

In Young’s double-slit experiment, the distance between two adjacent bright fringes, ∆𝑦 is:

14 / 20

The condition for destructive interference of two coherent beams is that the path difference should be

15 / 20

The condition for constructive interference of two coherent beams is that the path difference should be

16 / 20

When the crest of one wave falls over the trough of the other wave, this phenomenon is known as

17 / 20

Sodium chloride in a flame gives out pure:

18 / 20

Two sources of light are coherent if they emit rays of

19 / 20

Which one of the following is nearly monochromatic light?

20 / 20

The distance between two consecutive wave fronts is called:

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