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

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

Question # 2

To find wavelength of light by his experiment. Newton utilized:

Question # 3

When the light from two lamps falls on a screen, no interference pattern can be obtained. Why is this?

Question # 4

The light which has components in all directions is called

Question # 5

The conversion of electrical signals into light signals taken place due to

Question # 6

If the two reflected waves reinforce each other then the firm as seen from the parallel beam of monochromic light will look

Question # 7

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

Question # 8

For constructive interference path difference should be

Question # 9

In viewing the distant objects the angle subtended at the telescope is

Question # 10

Magnification of a convex lens is

Question # 11

X-ray crystallography can be used to get what information about the structure of a compound?

Question # 12

Huygen's principle states that:

Question # 13

The velocity of light in vacuum can be changed by changing:

Question # 14

The magnification of a simple microscope of focal length 5cm is

Question # 15

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

Question # 16

Alexander graham bell transmits a voice message via a

Question # 17

The magnifying power of a simple microscope can be increased if we use eye piece of

Question # 18

Propagation of light in an optical fiber requires that light should be

Question # 19

The magnifying power of an instrument is expressed in

Question # 20

A ray of light reflected from a dense medium under goes a phase change of:

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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 Colours seen on oily water surface by the incident white light is due to
A. Diffraction
B. Interference
C. Refraction
D. Reflection
2 How many phone calls can be carried by single mode step index fibre
A. 25000
B. 96000
C. 14000
D. 21000
3 Using monochromatic light, interference fringes are produced on a screen placed a distance D from a pair of slits of separation a.
The separation of the fringes is X.
a is now halved and D is increased by a factor of 4.
What is the new fringe separation?
A. 16 X
B. 8 X
C. 4 X
D. 2 X
4 The range of the diameter of core in multimode graded index fibre is
A. 50 to 100 μm
B. 50 to 1000 μm
C. 50 to 1000 μm
D. None of these
5 Huygen's wave theory of light cannot explain
A. Diffraction
B. Interference
C. Polarization
D. Photoelectric effect
6 Spectrometer can be used to
A. Measure wave length of light
B. Measure refractive index of the materials
C. Study spectra of light
D. All
7 A telescope is rotatable about the same vertical axis as the turntable, with a scale which is
A. Main scale
B. Vernier scale
C. Half degree scale
D. None of these
8 A fiber of 50μm diameter capable of carrying white light at ______ distances is called ______ index fiber
A. Large, multi-mode step
B. Small, multi-mode step
C. Small, multi-mode graded
D. Large, single mode step
9 Fringe spacing ΔY is the distance between two adjacent bring fringes on the screen is
A. ΔY = Lλ/d
B. ΔY = Ld/λ
C. ΔY = dλ/L
D. ΔY = Lλ/d m
10 The property of light which does not change with the nature of the medium is
A. Frequency
B. Amplitude
C. Wavelength
D. None of these

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