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 contains 5000 lines per centimeter, its grating element will be

Question # 2

When light passes through a tourmaline crystal, it becomes

Question # 3

The optical fibre is covered for protection with

Question # 4

A thin film is a transparent medium whose thickness is comparable with the wavelength of

Question # 5

The time taken by light for its passage from M to m and back is

Question # 6

The speed of secondary wavelets as mentioned in Huygen's principle is______the speed of propagation of the wave itself:

Question # 7

A driver in a lake wants to signal his distress to a person sitting on the edge of the lake flashing his water proof torch He should direct the beam

Question # 8

Characteristics of optic fibre is/are

Question # 9

The phase difference between two points on a wave front will be

Question # 10

One cannot see through fog becuase

Question # 11

Alexander graham bell transmits a voice message via a

Question # 12

A polarizer is used to

Question # 13

A line normal to the wave front is called

Question # 14

The regular array of atoms in a crystal forms a natural diffraction grating of spacing typically

Question # 15

At the point of contact of the lens and the glass plate, the incident and reflected rays interfere

Question # 16

Optical fibres function on the principle of

Question # 17

In Newton's rings the thickness of air film at the point of contact is

Question # 18

Geometrical optics cannot give following characteristics for a microscope

Question # 19

Near and far points of a healthy human eye respectively are

Question # 20

The optical fibre has a layer over the central layer is called cladding of refractive index

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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 light from the sun reaches to earth with wavefronts
A. Spherical
B. Cylindrical
C. Plane
D. None of these
2 The resolving power of human eye is
A. 1° 
B. 2°
C. 3°
D. 6°
3 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?
A. 1/2
B. 2/3
C. 3/2
D. 2/1
4 In Young's double slit experiment fringe width (or fringe spacing) depends
A. inversely on wavelength
B. directly on wavelength
C. directly on square of wavelength
D. inversely on square of wavelength
5 We can divide the optical fibres on the basis of the mode by which they propagate light in
A. two types
B. three types
C. four types
D. many types
6 If the wavelength of light used in Michelsion's interferometer is 400 nm and the moveable mirror only moved throughλ/4, then the length moved will be
A. 10 nm
B. 10-2mm
C. 1 nm
D. 10-4mm
7 According to the Huygen's principle, the secondary wavelets propagate in the forward direction with a speed equal to
A. speed of wave motion
B. speed of medium
C. speed of electrons
D. speed of protons
8 For single slit diffraction the first minimum occurs when
A. dsinθ = λ
B. dsinθ = λ/2
C. dsinθ = 2λ
D. dsinθ = mλ
9 The refractive index of a medium is defined as a ratio
10 The length of the standard metre measured by Michelsion's interferometer comes out to be
A. 1,553, 163.5 wavelength
B. 1553.5 wavelength
C. 155316.5 wavelength
D. none of them

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