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

In an optical fibre the speed of light is

Question # 2

If a point source of light is placed at the focus of a convex lens the rays coming out of the lens will constitute

Question # 3

The brilliance of diamond is

Question # 4

For incident angles equal or greater than the critical angle the glass air boundary will act as a

Question # 5

A diffraction grating has 500 liens per mm. its slit spacing or grating element will

Question # 6

Successive dark and bright fringes are formed each time the moveable mirror in Michelsion's interferometer is moved a distance

Question # 7

How is the interference pattern in Young's double slit experiment affected if the sodium light is replaced by red light of the same intensity

Question # 8

Point out angle/angle at which the sin θ and tan θ have the same value

Question # 9

The medium in which speed of light is the same in all directions is called

Question # 10

The speed of light in vacuum or in air is

Question # 11

The wavelength of X-rays is about

Question # 12

In multimode graded index fibre core and cladding has boundary

Question # 13

The total magnification of a combination of two lenses having individual magnification M1 and M2 is

Question # 14

A _____ lens is used in the apparatus to get newton's ring:

Question # 15

The dichronic substances are used in the process getting plane polarized light

Question # 16

A normal to the waves front showing direction of propagating of wave is called

Question # 17

For total internal reflection to take place, the angle of incidence must be ______ than critical angle and the light should travel from ______ to ______ medium

Question # 18

Inverse square law for luminace is valid for

Question # 19

Ordinary light has components of vibration in

Question # 20

All of the following statements are correct except

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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 Sunset makes sky appears reddish because of:
A. Diffraction of sun rays
B. Refraction of light
C. Scattering of light from dust particles
D. Polarization of ligth
2 If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope
A. Decreases
B. Increases
C. Gets halved
D. Remains unchanged
3 The distance between the two adjacent slits is called
A. Thickness of the slit
B. Distance between and two slits
C. Grating element
D. None of these
4 The light which has components in all directions is called
A. unpolarized light
B. polarized light
C. intense light
D. none of them
5 A point on the surface of the mirror where principle axis meets is called
A. Focus
B. Centre of curvature
C. Pole
D. Aperture
6 The information received at the other end of a fibre can be inaccurate due to
A. dispersion of light signal
B. spreading of light signal
C. both of them
D. none of them
7 As the object is brought from a far off point to he focus, the magnification goes on
A. Increasing
B. Decreasing
C. Do not change
D. None of these
8 Geometrical optics cannot give following characteristics for a microscope
A. Image position
B. Image size
C. Resolution of image
D. Any of the above
9 The image formed by an eyepiece of compound microscope is
A. Real and diminished
B. Real and enlarged
C. Virtual and enlarged
D. Virtual and diminished
10 When two lights waves travelling in the same direction are in phase at any point, they producing
A. constructive interference
B. destructive interference
C. dispersion
D. polarization

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