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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

The blue color of sky is due to:

Question # 2

When a light signal travels along the length of the optical fibre, the power lost by it is due to

Question # 3

Spectrometer can be used to

Question # 4

What is the main cause of the shinning of diamond?

Question # 5

In case of destructive interference of two waves, the amplitude of the resultant wave will be ______ either of the waves

Question # 6

In diffraction grating has feature/features like

Question # 7

In Young s double slit experiment if we use white light then

Question # 8

The total magnification of a combination of two lenses having individual magnification M1 and M2 is

Question # 9

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

Question # 10

A ray of light passing from a rarer to a denser medium

Question # 11

When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is

Question # 12

The absence of light in the optical fibres represents the number

Question # 13

Electromagnetic waves from a source were found to be significantly diffracted when passing through gaps of the order of 10 m. What type of waves are they likely to be?

Question # 14

If 5000 lines/cm are ruled on a diffraction grating, the element is:

Question # 15

The least distance of distinct vision for a normal eye is

Question # 16

The scattering of X-rays from atoms in a crystalline lattice gives rise to

Question # 17

For constructive interference the path difference is

Question # 18

Reflection of light from water, glass, snow and rough road surfaces, for larger angle of incidences, produces

Question # 19

If a lens is cut into two piece perpendicular to the principal axis and only part is used the intensity of the image:

Question # 20

On a diffraction grating which thing acts as a slit

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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 The setting of Newton's rings is
A. A Plano convex lens and the plane glass plate
B. A Plano convex lens and simple glass sheet
C. A Plano convex lens (long focal length) and the plane of glass plate
D. None of these
2 A fiber of 50μm diameter capable of carrying white light at ______ distances is called ______ index fiber
A. Large, multi-mode step
B. Small, multi-mode step
C. Small, multi-mode graded
D. Large, single mode step
3 The time taken by light for its passage from M to m and back is
A. 2c/d
B. d/2c
C. 2d/c
D. d2/2c
4 The frequency of light ray is 6 x 1014 Hz. The frequency when it propagates in a medium of refractive index 1.5 will be
A. 6 x 1014 Hz
B. 4 x 1014 Hz
C. 9 x 1014 Hz
D. 1.67 x 1014 Hz
5 The fiber of which refractive index ______ gradually as move from central core to its periphery is called ______ index fiber
A. Decreases, multi-mode graded
B. Increases, single mode step
C. Either of A or B
D. Increases, multi-mode step
6 The resolving power of telescope depends on
A. Focal length of eye lens
B. Focal length of objective lens
C. Length of the telescope
D. Diameter of he objective lens
7 Which light travels faster in optical fibres?
A. visible light
B. ultraviolet
C. infra-red
D. any one of them
8 Which of the following types of optical fibre has a very thin core of about 5μm diameter and has a relatively large cladding?
A. single mode step index fibre
B. multi-mode step index fibre
C. multi-mode graded index fibre
D. none of them
9 When an image formed by the objective lies at the focus of both the objective and the eye-piece, the telescope is said to be in
A. Final adjustment
B. Normal adjustment
C. Initial adjustment
D. None of these
10 When crest of one wave coincides with the trough of the other wave, it give rise to
A. dispersion
B. constructive interference
C. destructive interference
D. polarization

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