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

Experimental demonstration of wave nature of light was given in 1801 by:

Question # 2

Layer of oil on water in sunlight appears coloured due to

Question # 3

The magnification of a compound microscope of object and eye piece of focal lengths f0and fe, respectively is

Question # 4

Which is having minimum wavelength?

Question # 5

Conditions for interference are that the two sources should be coherent and

Question # 6

In case of reflection of ray within a denser medium, angle of incidnet is ______ -angle of reflection

Question # 7

When sunlight falls on a soap bubble (film), it appears coloured because of

Question # 8

Soap bubble looks colored due to

Question # 9

A normal to the waves front showing direction of propagating of wave is called

Question # 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

Question # 11

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

Question # 12

The study of atomic structure of crystals by X-rays was initiated by W.H.. Bragg and W.L. Bragg in

Question # 13

A double convex lens act as a diverging lens when the object is

Question # 14

The sky appears blue because

Question # 15

In Newton s rings the central spot appears dark due to

Question # 16

If λ = 589 nm   d=1.0 mm  L=225 cm then fringe spacing ΔY is given by  

Question # 17

A completely transparent material will be invisible in vacuum when the refractive index n is

Question # 18

Single mode step index fibre has a very thin core of about diameter

Question # 19

The wavefront formed at very large distance from the source is:

Question # 20

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

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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 diffraction of light occurs, due to interference, of
A. Obstructed portion
B. Unobstructed portion
C. Both obstructed and unobstructed light
D. None of these
2 A ray of light always points
A. Anti parallel to wave front
B. Perpendicular to wave front
C. Parallel to wave lets
D. None
3 Multimode step index fibre has a core of relatively larger diameter such is
A. 125 μm
B. 175 μm
C. 50 μm
D. 100 μm
4 Cladding means a layer of ______ refractive index over the central core of ______ refractive index
A. Lower, lower
B. Higher, lower
C. Lower, higher
D. None of these
5 The laser light used in an optical fiber system has a wavelength equal to
A. 3μm
B. 5μm
C. 1.3μm
D. 6μm
6 Whenever high magnification is desired
A. A telescope is used
B. A compound microscope is used
C. A microscope is used
D. None of these
7 The superposition of the two waves of same frequency and amplitude travelling in the same direction gives rise to an effect called:
A. Diffraction
B. Interference
C. Polarization
D. Dispersion
8 Colours seen on oily water surface by the incident white light is due to
A. Diffraction
B. Interference
C. Refraction
D. Reflection
9 The magnifying power of a simple microscope can be increased if we use eye piece of
A. Higher focal length
B. Smaller focal length
C. Higher diameter
D. Smaller diameter
10 If Young s double slit experiment is immersed in water then the fringes with
A. Decreases
B. Remains unchanged
C. Becomes infinite
D. Increases

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