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

The plane of polarization is rotated many degrees when a thickness of such crystal is

Question # 2

When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is

Question # 3

A compound microscope is consists of

Question # 4

When observed by transmitted light, the central band of newton's ring system consists of:

Question # 5

The light waves and radio waves differ in

Question # 6

A usual way to obtain a plane wave is to place point source of light at the focus of a

Question # 7

The brilliance of diamond is

Question # 8

In Michelsion's interferometer, if 'm' number of fringes are passed in front of a reference point when the moveable mirror is moved a distance L, then

Question # 9

Newton's rings are formed due to

Question # 10

How the fringe spacing varies as the separation of the slits increases

Question # 11

Light appears to travels in straight lines since

Question # 12

According to Huygen's principle, every point of a wavefront may be considered as a source of

Question # 13

A convex lens of focal length 5 cm is used as magnifying glass Its magnifying power when the image is formed at infinity

Question # 14

An optical fibre with its protective case may be typically

Question # 15

The wavelength of refractive wave in a denser medium is

Question # 16

Monochromatic light directly means waves of

Question # 17

A microscope has an objective lens of 10 mm focal length and an eye piece of 25.0 mm focal length what is the distance between the lenses

Question # 18

A point on the surface of the mirror where principle axis meets is called

Question # 19

Optical fibres function on the principle of

Question # 20

Two sources are said to be coherent if they have:

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Critical angle of light passing from glass to air is minimum for
A. Red
B. Green
C. Yellow
D. Violet
2 Which optical fibre is used for shorter distances only?
A. single mode step index fibre
B. multi-mode step index fibre
C. multi-mode graded index fibre
D. all of them
3 When a plane polarized light is passed through certain crystals they
A. Are totally absorbed
B. Are totally reflected
C. Rotate the plane of polarization
D. None of these
4 When the light waves of the same frequency and amplitude travelling in the same direction superimose each other , they give rise to
A. interference
B. diffraction
C. dispersion
D. polarization
5 An object is placed at a distance of f/2 from a convex lens.The Image will be
A. At one of the foci,virtual and double its size
B. At,3/f real and inverted
C. At 2f,virtual and erect
D. At f,real and inverted
6 At the point of contact of the lens and the glass plate, the incident and reflected rays interfere
A. constructively
B. destructively
C. either of them
D. none of them
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
A. The fringes will vanish
B. The fringes will become brighter
C. The fringes will increase
D. The fringes will decrease
8 When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is
A. 5000 mm
B. 5000°A
C. 500 cm
D. 2000°A
9 In case of destructive interference of two waves, the amplitude of the resultant wave will be_______either of the waves:
A. Greater than
B. Smaller than
C. Equal to
D. none of these
10 The apparent size of an object depends on the angle subtended but it at the eye. As the angle increases the size of the object
A. Smaller
B. Larger
C. Very large
D. None of these

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