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

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

Question # 2

The velocity of light in vacuum can be changed by changing

Question # 3

An oil film floating on water surface show colours due to

Question # 4

In newton's rings see through the reflected light, centeral spo is:

Question # 5

Two wave of intensities I an 4I superpose then the maximum and minimum intensities are

Question # 6

When one mirror of Michelson interferometer is moved a distance of 0.5 mm. 2000 fringes are observed, the wavelength of light used is

Question # 7

The study of atomic structures of crystals by X-rays was started in

Question # 8

2 d sin θ = nλ can be used to determine the

Question # 9

The points on a Huygen's wave front which sends out secondary wavelets are also

Question # 10

The direction of a ray of light is.......to the wave front.

Question # 11

Huygen's wave theory of light cannot explain

Question # 12

In Multimode step index fibre the refractive index from its centre to the boundary is

Question # 13

According to Huygen,every point on a wavefront may be regarded as a.........of secondary wavelets.

Question # 14

Light waves are:

Question # 15

Newton's rings are formed as a result of

Question # 16

If the slits in YDS experiment are made closer, fringe spacing will:

Question # 17

In case of destructive interference of two waves, the amplitude of the resultant wave will be ______ either of the waves

Question # 18

Huygen's wave front which sends out secondary wavelets with a speed equal to

Question # 19

Which phenomenon of light takes place in Young's double-slit experiment?

Question # 20

In the study of interference and diffraction, we consider

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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 light signals are sent from the source
A. A ordinary source
B. A monochromatic light source
C. A moulticolour source
D. None of these
2 In young's double slit experiment the separation between the slit is halved and distance between the slit and screen is doubled.The fringe width is
A. Unchanged
B. Halved
C. Doubled
D. Quadrupled
3 The colour of light is determined by is
A. Wavelength
B. Frequency
C. Velocity
D. Amplitude
4 An image formed by a concave lens is always
A. Virtual
B. Real
C. Inverted
D. None of these
5 Sunset makes sky appears reddish because of:
A. Diffraction of sun rays
B. Refraction of light
C. Scattering of light from dust particles
D. Polarization of ligth
6 The distance between the centres of two consecutive bright fringes (or dark fringes) is called
A. wavelength
B. fringe width
C. amplitude
D. path difference
7 Which is having minimum wavelength?
A. X-rays
B. Ultra-violet rays
C. Y-rays
D. Cosmic rays
8 The relation for the diffraction pattern, when it is minimum
A. d/2 sin θ = λ
B. sin θ = λ/2
C. d sin θ = λ
D. None of these
9 The direction of a ray of light is.......to the wave front.
A. Parallel
B. Equal
C. Opposite
D. Perpendicular
10 For single slit diffraction the first minimum occurs when
A. dsinθ = λ
B. dsinθ = λ/2
C. dsinθ = 2λ
D. dsinθ = mλ

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