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

A spectrometer is an optical device used to study the spectra from different sources of light which is

Question # 2

Which of the following is not an application of polarization

Question # 3

The advantage/advantages of fiber optics than radio wave carriers

Question # 4

The principle of Michelson's interferometers is

Question # 5

In Newton,s rings apparatus, we also use

Question # 6

The re conversion of light signals into electrical signals takes place due to

Question # 7

A circular scale is attached and graduated in

Question # 8

A convex lens has focal length F.An object is placed at P then

Question # 9

The light waves and radio waves differ in

Question # 10

Just before  setting the sun may appear to be elliptical This happens due to

Question # 11

A tourmaline crystal is being used as an analyzer In one complete rotation of the crystal the number of excitation will be

Question # 12

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

Question # 13

Wavelength of light, on the average, is given by:

Question # 14

In an astronomical telescope the eye piece has the focal length fe if

Question # 15

What will be the colour of the sky as seen from the earth if there were no atmosphere ?

Question # 16

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

Question # 17

To observe diffraction phenomenon the size of a obstacle

Question # 18

The path difference and phase difference are related to each other as

Question # 19

The speed at which light travels within the material depends upon

Question # 20

The velocity of light in vacuum can be changed by changing

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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 A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.
A. The distance between the objective and the eyepiece is 8m
B. The angular magnification of the planet is 200
C. The image of the planet is inverted
D. The objective is smaller than the eyepiece
2 Which one of the following waves cannot be polarized
A. Radio waves
B. X-rays
C. Transverse waves in a string
D. Longitudinal waves in a gas
3 To increase the magnification of a telescope
A. The objective lens should be of large focal length and eyepiece should be of short focal length
B. The objective and eyepiece both should be of large focal lengths
C. Both the objective and eyepiece should be of smaller lengths
D. The objective should be small focal length and eyepiece should be of large focal length
4 Who proposed that light energy form a luminous source travels in space by means of wave motion?
A. Newton
B. Maxwell
C. Einstein
D. Huygen
5 In normal adjustment, the length of the telescope is
A. fe + fo
B. fo - fe
C. fe - fo
D. None of these
6 Two layers optical fibre in which central layer is called core which has refractive index
A. High
B. Low
C. Very low
D. None of these
7 When light passes through a tourmaline crystal, it becomes
A. plane polarized
B. directly polarized
C. un-polarized
D. spherically polarized
8 The resolving power of a grating spectrometer is
9 To get three images of a single object,one should have two plane mirrors at an angle of
A. 90°
B. 120°
C. 30°
D. 160°
10 For glass-air boundary the critical angle θc is
A. 30o
B. 41.8o
C. 42.0o
D. 44.0o

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