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

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Question # 2

In Young's double slit experiment, the widths of dark and bright fringes are

Question # 3

Which light travels faster in optical fibres?

Question # 4

Given that grating element = 0.2 x 10-3cm in case of a diffraction grating. Then number of lines per centimeter will be

Question # 5

A lens of 2 cm focal length is to be used as a magnifying glass. Its magnification is

Question # 6

To observe diffraction phenomenon the size of a obstacle

Question # 7

When an image is placed at the focal length of the eye piece, the final image formed at

Question # 8

Let a ray of light enters from air into two media of different refractive indices. The speed of light will be ______ to refractive index

Question # 9

Electromagnetic waves transport:

Question # 10

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

Question # 11

With a graded index fibre, the overall time difference between all the wavelengths arrived at the other end may be about

Question # 12

The information received at the other end of a fibre can be inaccurate due to

Question # 13

In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?

Question # 14

Which of the following phenomenon cannot take place if we consider light as longitudinal wave?

Question # 15

Ordinary light has components of vibrations in

Question # 16

Michelson's interferometer is an instrument used to measure the distance with

Question # 17

The ultra-purity of optical fibre is

Question # 18

Commercial polarizing material is

Question # 19

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

Question # 20

X-ray diffraction has been very useful in determining structure of

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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 Wave front is the locus or all points in vibration are in the same
A. Frequency
B. Phase
C. Wavelength
D. All of these
2 The information carrying capacity in an optical fibre is called
A. wavelength
B. frequency
C. bandwidth
D. none of them
3 An image formed by a concave lens is always
A. Virtual
B. Real
C. Inverted
D. None of these
4 When crest of one wave coincides with the trough of the other wave, it give rise to
A. dispersion
B. constructive interference
C. destructive interference
D. polarization
5 A beam of light enters air from water.Which of the following characteristics of light will not change in water
A. Frequency
B. Wavelength
C. Velocity
D. Amplitude
6 In photo phone modulated beam of reflected sun light focused on a detector several hundred meters away with the divice
A. Germanium
B. Selinium
C. Silicon
D. None of these
7 For interference to occur, the light coming from the two slits should
A. be monochromatic
B. come from the same source
C. have a constant path difference
D. all of them
8 The ratio of size of the image to the size of the object is called
A. Resolving power
B. Magnification
C. Power
D. None of these
9 In case of a point source, the shape of the wavefront is
A. straight
B. elliptical
C. oval
D. spherical
10 Wavelength of light, on the average, is given by
A. 10-14m
B. 10-10m
C. 10-6m
D. 10-4m

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