MDCAT Physics Chapter 7 MCQ Test With Answer for (Light )

Many students feel anxious about how to prepare for the exam during the MDCAT preparation effectively. Solving MCQs is considered one of the best ways to analyze your preparation level before the commencement of the test. The students preparing for the MDCAT are informed that they can get the MCQs of chapter 7 of physics from this platform.

MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

Try The MCQ's Test For MDCAT Physics Chapter 7 Light Online Test

  • Total Questions20

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

In newton's rings apparatus, we also use:

Question # 2

The contrast in the fringes in any interference pattern depends on

Question # 3

The appearance of colours in the shape (or oil) film results from:

Question # 4

Repeaters are the devices which regenerate the signals and are placed at about

Question # 5

Two sources are said to be coherent if they have:

Question # 6

Single mode step index fibre has feature/s like

Question # 7

If the path difference must be an integral multiple of wavelength

Question # 8

There will be no change in _______ of light entering glass

Question # 9

Michelson's interferometer is an instrument that is capable of measuring distance with

Question # 10

The central point in the Newton's rings is dark due to

Question # 11

The multi-mode step index optical fibre, the central core has

Question # 12

In Young s experiment the distance between two adjacent fringes for blue light is than that for green light

Question # 13

In an astronomical telescope the eye piece has the focal length fe if

Question # 14

In Michelsion's interferometer, if 'm' number of fringes are passed in front of a reference point when the moveable mirror is moved a distance L, then

Question # 15

Multimode graded index fibre core has diameter of

Question # 16

According to Huygen's principle, the new position of the wavefront after a time can be found by constructing a surface that touches all the

Question # 17

Monochromatic light means waves of:

Question # 18

Two monochromatic radiations X and Y are incident normally on a diffraction grating.The second order intensity maximum for X coincides with the third order intensity maximum for Y what is the ratio wavelength of X/wavelength of Y?

Question # 19

An oil surface floating on water surface exhibits beautiful colour patter, which is due to 

Question # 20

We can observe only when the grating spacing is

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The answers are also available here to facilitate the students' preparation. With continuous practice, the candidates will be able to get a good score on the entry test. So after preparing for the particular chapter, solve the MCQs and learn about your preparation. Spend maximum time to improve your weak areas and then ace the test with a good score. The students can also solve the other physics chapters' MCQs for better preparation.

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 A line normal to the wave front is called
A. A beam of light
B. A ray of light
C. Both
D. None of these
2 When the length of a microscope tube increases its magnifying power
A. Decreases
B. Increases
C. Does not change
D. May increase or decrease depending on the observer and the place of observation
3 The distance between the two mirrors can be varied by
A. Moving glass plate
B. Movable mirror
C. Compensator plate
D. None of these
4 In YDS experiment, fringe spacing means the distance between two consecutive_____fringes:
A. Bright
B. Dark
C. Any of A or B
D. None of these
5 An object is placed at a distance of f/2 from a convex lens.The Image will be
A. At one of the foci,virtual and double its size
B. At,3/f real and inverted
C. At 2f,virtual and erect
D. At f,real and inverted
6 An object is placed at a distance 18 cm from a convex lens. The image is formed at a distance of 9 cm the focal length of the lens is
A. 6 cm
B. 9 cm
C. 10 cm
D. 18 cm
7 A ray of light passing from a rarer to a denser medium
A. Bends towards normal
B. Bends away from normal
C. Suffers no change in direction
D. None of these
8 In compound microscope the focal length of eye piece is
A. Large
B. Small
C. Same as objective
D. None of these
9 The twinkling of stars is due to
A. The fact that stars do not emit light continususly
B. The refractive index of the earth's atmosphere fluctuate
C. Intermittent absorption of star light by its own atmosphere
D. None of these
10 When monochromatic light is incident, making certain angle, on a thin parallel film, the interference fringes formed are
A. straight
B. circular
C. square
D. plane

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