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

The phenomenon of diffraction also contains the phenomenon of

Question # 2

Single mode step index fibre has a very thin core of about diameter

Question # 3

Sunlight is also partially polarized because of Earth's atmosphere due to scattering by

Question # 4

In YDS experiment, if the distance between the slits and also the distance between slits and screen is doubled, the fringe width

Question # 5

On a diffraction grating a large number of close parallel equidistant slits are ruled on it

Question # 6

Which of the following atoms cannot be detected by X-ray crystallography?

Question # 7

In thin film colours are due to

Question # 8

Which of the following properties show light is transverse wave in nature?

Question # 9

Television signal are converted into light signals by

Question # 10

The light which has components in all directions is called

Question # 11

The transmission of information by light waves may be

Question # 12

A convex ens acts as diverging lens when the object is placed

Question # 13

Near and far points of a healthy human eye respectively are

Question # 14

Which is having minimum wavelength?

Question # 15

In case of YDS experiment, the distance of the mth bright fringe on the screen from center is

Question # 16

Two sources are said to be coherent if they have:

Question # 17

In multi-mode step index optical fibre, that layer is called cladding which has

Question # 18

If the path difference must be an integral multiple of wavelength

Question # 19

Huygen's principle is used to study the

Question # 20

Which does not show polarization

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 The property of light which does not change with the nature of the medium is
A. Frequency
B. Amplitude
C. Wavelength
D. None of these
3 Which of the following is an optical fibre in which the density of central core decreases towards its periphery?
A. multi-mode step index fibre
B. multi-mode graded index fibre
C. both of them
D. none of them
4 The practical use of services by optic fiber is
A. Two way television
B. World processing
C. Image transmitting and receiving equipment
D. All of these
5 The difference between 1st ring fringe and 1st dark fringe is measured as
A. λD/2d
B. λD/d
C. λD/4d
D. 2λD/d
6 The magnifying power of a compound microscope can be increased if we use objective lens of
A. Large focal length
B. Small focal length
C. Same focal length
D. None of these
7 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
A. primary wavelets
B. secondary wavelets
C. either of them
D. none of them
8 In a simple microscope if the final image is located at infinity then its magnifying power is
A. 25/f
B. 25
C. f/25
D. [1 + (25/f)]
9 In YDS experiment, the condition for constructive interference of two coherent waves is that the path difference should be
A. Integral multiple ofλ/2
B. Integral multiple ofλ
C. Even integral multiple ofλ/2
D. Both A and C
10 If the focal length of objective is 10 mm find its magnification
A. 18
B. 19
C. 20
D. 21

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