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 Bragg's formula, the path difference should beam integral multiple of the wavelengths

Question # 2

How many fringes will pass a reference point if the moveable mirror of a Michelson s interferometer is moved 0.06 mm The wavelength of light used is 5.89 x10-3 mm

Question # 3

In Newton's rings the thickness of air film at the point of contact is

Question # 4

The speed at which light travels within the material depends upon

Question # 5

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

Question # 6

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

Question # 7

When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is

Question # 8

In diffraction grating has feature/features like

Question # 9

For destructive interference the path difference is give by:

Question # 10

In Newton's rings the point of contact of the lens and the glass plate, the air film is

Question # 11

Optical fibres are of

Question # 12

Light appears to travel in straight line because

Question # 13

When a ray of light enters a denser medium from a rarer medium,its:

Question # 14

When light signal travels along fibres, the power losses are mainly due to

Question # 15

Which is having minimum wavelength?

Question # 16

Sunset makes sky appears reddish because of:

Question # 17

Two sources of waves are called coherent if

Question # 18

Optically active substance are those substance which

Question # 19

A compound microscope is consists of an eye piece  of focal length

Question # 20

Light has:

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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 In light waves, the components of electric and magnetic fields are
A. parallel to each other
B. anti-parallel to each
C. right angle to each other
D. none of them
2 Calculate the critical angle when core refractive index is 1.50 and cladding of refractive index 1.48
A. 70.3o
B. 80.9o
C. 80.6o
D. 89.6o
3 The typical example/examples of optically active crystals
A. Quartz
B. Crystals of sodium chlorate
C. Crystals of sodium chloride
D. a and b
4 How many phone calls can be carried by single mode step index fibre
A. 25000
B. 96000
C. 14000
D. 21000
5 According to the Huygen's principle, the secondary wavelets propagate in the forward direction with a speed equal to
A. speed of wave motion
B. speed of medium
C. speed of electrons
D. speed of protons
6 Speed of light in vacuum depends upon:
A. Frequency
B. Wavelength
C. Amplitude
D. None of above
7 At certain speed, the time taken by light in moving from M to m and back to M is equal to the time taken by
A. Face 4  to 1
B. Fact 6 to 1
C. Face 3 to 1
D. Face 2 to 1
8 The concentration in solution can be determined by the property known as
A. Solubility
B. Insolubility
C. Optical activity
D. None of these
9 In Young s double slit experiment the separation between the slits in halved and the distance between the slits and the screen is doubled the fringe with will
A. Be doubled
B. Be quadrupled
C. Remain the same
D. Be halved
10 The magnification of a simple microscope of focal length 5cm is
A. 3
B. 5
C. 6
D. 20

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