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

Optically active substance are those substance which

Question # 2

The twinkling of stars is due to

Question # 3

Who attempted to measure the speed of light

Question # 4

The wavelength of X-rays is about

Question # 5

Reflection of light from water, glass, snow and rough road surfaces, for larger angle of incidences, produces

Question # 6

In order to observe interference , the interfering beams must be

Question # 7

Which phenomenon of light conclusively prove that light waves are transverse waves

Question # 8

If the focal length of objective is 10 mm find its magnification

Question # 9

Huygen's wave theory of light cannot explain

Question # 10

A ray of light passing from a rarer to a denser medium

Question # 11

At points where the crest (or trough) of one wave coincides with the crest (or trough) of the other wave, the wave produces

Question # 12

The wavelength of refractive wave in a denser medium is

Question # 13

In multimode graded index fibre core and cladding has boundary

Question # 14

A fibre optic communication system consists of

Question # 15

The dichronic substances are used in the process getting plane polarized light

Question # 16

Two sources of light are said to be coherent when the waves produced by them have

Question # 17

The wave nature of light was first proposed by

Question # 18

A thin film is a transparent medium whose thickness is comparable with the wavelength of

Question # 19

If d = 0.25 cm   Y = 0.059 cm   L = 100 cm    m = 2 then λ is equal to

Question # 20

To get high resolving power for a telescope one should use

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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 angle of incidence at which angle of refraction becomes 900 is called
A. Incident angle
B. Angle of refraction
C. Critical angle
D. Phase angle
2 Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?
A. Refraction
B. Reflection
C. Diffraction
D. Formation of spectrum
3 Huygen's wave front which sends out secondary wavelets with a speed equal to
A. Speed of propagation of the wave
B. Speed of propagation greater than wave
C. Speed of propagation less than the wave
D. None of these
4 If focal length of objective is increased
A. Magnifying power of compound microscope decreased
B. Magnifying power of astronomical telescope increases
C. The diameter of the objective lens
D. None of these
5 In the relations d sinθ = nλ, shows that the value of θ depends upon 'n' so the images of different colours are much separated in
A. Low orders
B. Middle orders
C. High order
D. None of these
6 An object is placed at a distance of f/2 from a convex lens.The Image will be
A. At one of the foci,virtual and double its size
B. At,3/f real and inverted
C. At 2f,virtual and erect
D. At f,real and inverted
7 With a graded index fibre, the overall time difference between all the wavelengths arrived at the other end may be about
A. 1 ns per km
B. 10 ns per km
C. 43 s per km
D. 33 ns per km
8 If the cover of a red book is observed in monochromatic blue light,It will appear
A. White
B. Red
C. Black
D. Blue
9 The cause of mirage observed in deserts in bright sunlight is due to:
A. Refraction of light
B. Reflection of light
C. Scattering of light
D. Total internal reflection of light
10 There will be no change in _______ of light entering glass
A. Velocity
B. Frequency
C. Direction
D. Wavelength

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