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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

A diffraction grating has 500 liens per mm. its slit spacing or grating element will

Question # 2

Maximum detail of object can be seen from a microscope wen light used is of

Question # 3

Using monochromatic light, interference fringes are produced on a screen placed a distance D from a pair of slits of separation a.
The separation of the fringes is X.
a is now halved and D is increased by a factor of 4.
What is the new fringe separation?

Question # 4

A _____ lens is used in the apparatus to get newton's ring:

Question # 5

Given that grating element = 0.2 x 10-3cm in case of a diffraction grating. Then number of lines per centimeter will be

Question # 6

Due to dispersion effects, white light source is useful for

Question # 7

The relation between displacement of the mirror 'L' and wavelength λ of the light used

Question # 8

In Michelsion's interferometer, if a dark fringe is seen in the beginning, the next dark fringe will appear by moving the moveable mirror through a distance

Question # 9

In YDS experiment, data given isλ=500 nm, d=1 mm, L=100cm,∆y come out to be:

Question # 10

Conditions for interference are that the two sources should be coherent and

Question # 11

Point out angle/angle at which the sin θ and tan θ have the same value

Question # 12

If the magnification M1 = 20.0 for objective and M2 = 12.0 then total magnification is

Question # 13

When a ray of light enters a denser medium from a rarer medium,its:

Question # 14

Why laser rays are used to measure long distance?

Question # 15

What is the time taken by light to travel 4 mm in a material of refractive index 3

Question # 16

A spectrometer is used to find

Question # 17

Fiber optics also used to transmit light

Question # 18

Zero order image formed by the grating when the angle the along the direction of normal to grating is

Question # 19

Ordinary light has components of vibrations in

Question # 20

The advantage/advantages of fiber optics than radio wave carriers

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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 In a astronomical telescope the final image for normal vision is formed at
A. The focal of the eye piece
B. The least distance of the distinct vision
C. The focus of the objective lens
D. Infinity
2 Snell's Law is defined as
A. n1 sin θ2 = n2 sin θ
B. n sin θ1 = n1 sin θ2
C. n1 sin θ1 = n2 sin θ2
D. None of these
3 YDS experiment can be used to determine:
A. Grating element
B. Fringe spacing
C. Wave length of monochromatic light
D. Frequency of wave light
4 Which does not show polarization?
A. Longitudinal waves in gas
B. Transverse wave in gas
C. Both A and B
D. None of these
5 In Michelsion's interferometer the path difference is varied by moving
A. compensatory plate
B. moveable mirror
C. fixed mirror
D. telescope
6 For incident angles equal or greater than the critical angle the glass air boundary will act as a
A. Convex mirror
B. Concave mirror
C. Mirror
D. None if them
7 A ray of light reflected from a dense medium under goes a phase change of:
A. 30°
B. 60°
C. 90°
D. 180°
8 The range of the diameter of core in multimode graded index fibre is
A. 50 to 100 μm
B. 50 to 1000 μm
C. 50 to 1000 μm
D. None of these
9 Polaristion is a phenomenon associated with a certain type of wave.
Which condition must be fulfilled if the wave is to be polarised?
A. It must be a light wave
B. It must be a longitudinal wave
C. It must be a light wave
D. It must be a transverse wave
10 The contrast in the fringes in any interference pattern depends on
A. Frings width
B. Intensity ratio of the sources
C. Distance between the slits
D. Wavelength

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