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

Rainbow is formed due to combination of

Question # 2

The digital modulation is expressed in

Question # 3

In cause of YDS experiment, the distance between adjacent bright fringes is given by

Question # 4

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

Question # 5

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

Question # 6

At the point of contact of the lens and the glass plate, the Newton's ring is

Question # 7

To observe diffraction phenomenon the size of a obstacle

Question # 8

The function of compensator plate in interferometer is to

Question # 9

Who attempted to measure the speed of light

Question # 10

Newton's rings are:

Question # 11

Sunlight is also partially polarized because of Earth's atmosphere due to scattering by

Question # 12

In YDS experiment, the condition for constructive interference of two coherent waves is that the path difference should be

Question # 13

An object is placed between the focus and the optical center of the convex lens. The image formed is

Question # 14

Which of the following properties show light is transverse wave in nature?

Question # 15

According to the Huygen's principle, the secondary wavelets propagate in the forward direction with a speed equal to

Question # 16

For interference to occur,the interfering beams of light must be

Question # 17

Which of the following spectrum have all the frequencies from high to low frequency range?

Question # 18

If light of low wavelength is used in Young's double slit experiment then width of the fine will

Question # 19

Laws of reflection and refraction can also be explained by:

Question # 20

Wave front is the locus or all points in vibration are in the same

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Layer of oil on water in sunlight appears coloured due to
A. diffraction of light
B. dispersion
C. interference of light
D. polarization of light
2 When light passes through a tourmaline crystal, it becomes
A. plane polarized
B. directly polarized
C. un-polarized
D. spherically polarized
3 Who devise the experimental arrangement in 1801 for studying interference effects of light
A. Huygen
B. Young
C. Newton
D. None of these
4 The variation if focal length of a lens when we pass from the central portion out words (to words the lens edges) is known as
A. Astigmatism
B. Chromatic
C. Spherical aberration
D. Coma
5 Colour of thin film will not show result from
A. Scattering of light
B. Dispersion of light
C. Interference of light
D. Both a and b
6 The resolving power of human eye is
A. 1° 
B. 2°
C. 3°
D. 6°
7 Basic principle of an optical fibre is
A. Reflection
B. Scattering
C. Polarization
D. Total internal reflection
8 If the plane polarized light is incident on the second sheet of Polaroid, no light is emitted when their axes are
A. Parallel to each other
B. Perpendicular to each other
C. In between two positions
D. None of these
9 In Young's double slit experiment fringe width (or fringe spacing) depends
A. inversely on wavelength
B. directly on wavelength
C. directly on square of wavelength
D. inversely on square of wavelength
10 In multimode graded index fibre core and cladding has boundary
A. Noticeable 
B. No noticeable
C. No boundary
D. None of these

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