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

Which of the following phenomenon cannot take place if we consider light as longitudinal wave?

Question # 2

If focal length of objective is increased

Question # 3

The wavelength of light is 6000°A, the number of waves continued in 0.01 m distance will be

Question # 4

When the object lies between F and 2F the image formed by a convex lens is

Question # 5

For glass-air boundary, the value of the critical angle is

Question # 6

The limit of which a microscope can be used to resolve details of an object, demands

Question # 7

A mode of propagation of light through optical fibre in which the light within the fibre is

Question # 8

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

Question # 9

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.

Question # 10

If the path difference must be an integral multiple of wavelength

Question # 11

A compound microscopes consists of objective of

Question # 12

When sunlight falls on a soap bubble (film), it appears coloured because of

Question # 13

If the moveable mirror in Michelsion's interferometer moves a distanceλ/2, the path difference changes by

Question # 14

The fringe spacing in case of red light

Question # 15

The image formed after objective lens of an astronomical telescope is

Question # 16

In the Newton's ring, as we proceed towards the periphery of the lens, the thickness of air film

Question # 17

The cause of mirage observed in deserts in bright sunlight is due to:

Question # 18

An object is placed at a distance 18 cm from a convex lens. The image is formed at a distance of 9 cm the focal length of the lens is

Question # 19

If light of low wavelength is used in Young's double slit experiment then width of the fine will

Question # 20

A wider objective and the use of blue light of short wavelength produces

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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 Optical fibres function on the principle of
A. reflection
B. refraction
C. total internal reflection
D. total internal refraction
2 Spectrometer using diffraction grating can measure
A. Wavelength of light
B. Frequency of light
C. Intensity of light
D. None of these
3 Which effect provides direct experimental evidence that light is a transverse rather than a longitudinal wave motion?
A. Light can be diffracted
B. Two coherent light waves can be made to interfere.
C. The intensity of light from a point source falls off inversely as the square of the distance from the source
D. Light can be polarized
4 The distance between the top adjacent slits on diffraction grating is called
A. element
B. grating element
C. aperture
D. slit
5 If the plane polarized light is incident on the second sheet of Polaroid, no light is emitted when their axes are
A. Parallel to each other
B. Perpendicular to each other
C. In between two positions
D. None of these
6 Which does not show polarization?
A. Longitudinal waves in gas
B. Transverse wave in gas
C. Both A and B
D. None of these
7 A single step index fibre can carry more than
A. 14 TV channels
B. 14,000 phone calls
C. 16 TV channels
D. a and b
8 Intensities of the two waves of light are I and 4I.The maximum intensity of the resultant wave after superposition is
A. 5I
B. 9I
C. 16I
D. 25I
9 In compound microscope magnification of objective is 2 and magnification of eyepiece is 4 magnification of compound microscope is
A. 2
B. 6
C. 8
D. None
10 Graham Bell photo phone used a modulated beam of
A. Reflected sun light
B. Refracted sun light
C. Diffracted sun light
D. None of these

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