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

Sunset makes sky appears reddish because of:

Question # 2

Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for first order diffraction is

Question # 3

If we know the refractive index of glass, speed v of light in the glass can be found by

Question # 4

The disadvantage of the step-index fibre can be reduced by

Question # 5

Plane polarized light can be produced by:

Question # 6

The organic substances which shows optical rotation when they are in solution

Question # 7

Angle subtended by any side of the eight-sided mirror at the center is

Question # 8

A typical diffraction grating has lines per centimeter is about

Question # 9

A fly is sitting on the objective of a telescope pointed towards the moons what effect is impacted in a photograph of the moon taken through the telescope

Question # 10

Angular magnification of a simple microscope is given as

Question # 11

With tremendous information carrying capacity is called

Question # 12

A lens behaves as a converging lens in air and a diverging lens in water the refractive index of the material is

Question # 13

To demonstrate the phenomenon of interference we require two sources that emit radiation

Question # 14

The reflected light is

Question # 15

Which of the following converts electrical signals into light signals?

Question # 16

Light waves produce interference when

Question # 17

Whenever high magnification is desired

Question # 18

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

Question # 19

In single slit diffraction the condition for second minimum is

Question # 20

A ray of light reflected from a dense medium under goes a phase change of:

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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 angle with the horizontal at which an underwater swimmer will see the setting sun is
A. 91°
B. 32°
C. 49°
D. 69°
2 Speed of light in vacuum depends upon:
A. Frequency
B. Wavelength
C. Amplitude
D. None of above
3 When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude
A. increases
B. decreases
C. remains unchanged
D. increases rapidly
4 In multi-mode step index optical fibre, that layer is called cladding which has
A. higher refractive index
B. lower refractive index
C. both of them
D. none of them
5 The multi-mode step index optical fibre, the central core has
A. high refractive index and low density
B. low refractive index and density
C. low refractive index and low density
D. high refractive index and high density
6 A thin layer of oil on the surface of water looks colored due to:
A. Diffraction of light
B. Reflection of light
C. Dispersion of light
D. Interference effect of light
7 Newton's rings are:
A. Rectangular
B. Spherical
C. Concentric circles
D. None of these
8 If 5000 lines/cm are ruled on a diffraction grating, the element is:
A. 5 x 10-5m
B. 2 x 10-6m
C. 5 x 10-6m
D. 2 x 10-5m
9 If the focal length of objective is 10 mm find its magnification
A. 18
B. 19
C. 20
D. 21
10 The function of colimator is
A. To converge the incoming rays
B. To make the parallel rays from source
C. In which the source of light is kept
D. None of these

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