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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

The phenomenon of diffraction also contains the phenomenon of

Question # 2

The danger signals are red while the eye is more sensitive to yellow because

Question # 3

Two layers optical fibre in which central layer is called core which has refractive index

Question # 4

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:

Question # 5

In case of destructive interference of two waves, the amplitude of the resultant wave will be ______ either of the waves

Question # 6

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

Question # 7

A line normal to the wave front is called

Question # 8

In case of constructive interference of two waves, the amplitude of the resultant wave is_____either of the waves:

Question # 9

In a spectrometer experiment monochromatic light is incident normally on a diffraction grating having 4.5 x 105 lines per meter.The second order line is seen at an angle of 30 to the normal what is the wavelength of the light?

Question # 10

Ordinary light has components of vibration in

Question # 11

When light travels from one medium to another which are separated by a sharp boundary the characteristic which does not change is

Question # 12

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 # 13

If the distance of a surface from light source is doubled,then the luminance will become

Question # 14

In order to get interference using two light rays:

Question # 15

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

Question # 16

Albert A. Michelson devised interferometer is

Question # 17

The distance between different interference fringes are:

Question # 18

Soap bubble looks colored due to

Question # 19

The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself

Question # 20

At the point of contact of the lens and the glass plate, the incident and reflected rays interfere

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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 focal length of the lens of human eye
A. Is fixed
B. Varies from zero to infinity
C. Can be increased only
D. Can be decreased only
2 Newton's rings are:
A. Rectangular
B. Spherical
C. Concentric circles
D. None of these
3 Glare produces when light reflects from water snow and rough road surfaces when their angle of incidence is
A. Small
B. Large
C. Very large
D. None of these
4 The image of an object 5 mm length is only 1 cm high. The magnification of the lens is
A. 1
B. 0.2
C. 2
D. 0.1
5 If 'd' 'm' and fringe spacing ΔY are known, the interference effect due to light of λ
A. Cannot be determine
B. Can be determined in same cases
C. Can be determined
D. None of these
6 Which of the following colors suffers maximum deviation in a prism?
A. Yellow
B. Blue
C. Green
D. Orange
7 A glass plate on which a large number of very fine equidistant parallel lines are drawn is called
A. convex lens
B. thin film
C. diffraction grating
D. interferometer
8 Multimode graded index fibre core has diameter of
A. 40-200 μm
B. 50-1000 μm
C. 50-150 μm
D. 50-300 μm
9 A telescope has an objective of focal length 10 cm the magnifying power of telescope is 5.Its length in normal adjustment is
A. 7.5cm
B. 10.5 cm
C. 12 cm
D. 15 cm
10 Which of the following converts electrical signals into light signals?
A. optical fibre
B. receiver
C. reflector
D. transmitter

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