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

In Michelson's interferometer , the plates are placed in front of incident ray at an angle of:

Question # 2

An optical fiber carries data in the form

Question # 3

Diffraction effect is

Question # 4

The light signals are sent from the source

Question # 5

The phenomenon of diffraction can be exhibited by

Question # 6

The blending of light when it passes from one medium to another is known as:

Question # 7

X-ray diffraction has been very useful in determining structure of

Question # 8

Wavelength of light of frequency 100 Hz is

Question # 9

In young s interference experiment one slit is covered with a cellophane paper which absorbs half the intensity then

Question # 10

All of the following statements are correct except

Question # 11

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

Question # 12

We can observe only when the grating spacing is

Question # 13

In YDS experiment, data given isλ=500 nm, d=1 mm, L=100cm,∆y come out to be:

Question # 14

Which light travels faster in optical fibres?

Question # 15

A typical diffraction grating has lines per centimeter is about

Question # 16

The idea of Michelsion's interferometer is based on the

Question # 17

Light appears to travel in straight line because

Question # 18

Who proposed wave theory of light

Question # 19

As the object is brought from a far off point to he focus, the magnification goes on

Question # 20

A spectrometer is an optical device used to study the spectra from different sources of light which is

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Ordinary light has components of vibrations in all possible planes. Such light is
A. Unpolarized light
B. Polarized light
C. Both
D. None of these
2 A diffraction grating has 500 liens per mm. its slit spacing or grating element will
A. 500 mm
B. 5 x 10-3 mm
C. 2 x 10-5mm
D. 2 x 10-3mm
3 Huygen's theory cannot explain:
A. Diffraction
B. Interference
C. Polarization
D. Photoelectric effect
4 Which phenomenon of light takes place in Young's double-slit experiment?
A. polarization of light
B. diffraction of light
C. interference of light
D. reflection of light
5 For incident angles equal or greater than the critical angle the glass air boundary will act as a
A. Convex mirror
B. Concave mirror
C. Mirror
D. None if them
6 In Michelson's interferometer , the plates are placed in front of incident ray at an angle of:
A. 45o
B. 60o
C. 90o
D. 120o
7 The unit of power of a lens is
A. Meter
B. Watt
C. Horsepower
D. Dioptre
8 When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude
A. increases
B. decreases
C. remains unchanged
D. increases rapidly
9 In young's slit experiment on interference the ratio of the intensities of a bright band and a dark band is 6 : 1 the ratio of the amplitudes o the interfering waves is
A. 16
B. 5/3
C. 4
D. 1/4
10 The optical resolution of microscope or a telescope tells us how close together, the two point sources of light can be so that they are still seen as two separate sources
A. Angular magnification
B. Resolution
C. Magnification
D. None of these

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