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

  • Total Questions20

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MDCAT Physics Chapter 7 Light Online Test

00:00
Question # 1

There will be no change in _______ of light entering glass

Question # 2

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting calculate the focal length of objective

Question # 3

The resolving power of human eye is

Question # 4

The ratio of fringes with for bright and dark fringes is

Question # 5

Which one of the following phenomenon cannot be explained by the wave theory of light ?

Question # 6

When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is

Question # 7

Which one of the following is an optically active substance?

Question # 8

The range of the diameter of core in multimode graded index fibre is

Question # 9

Which one of the following can act approximately as a source of monochromatic light:

Question # 10

The time taken by the mirror M to rotate through an angle 2π/8 is

Question # 11

 In the phenomenon of interference, the bright and dark fringes are of

Question # 12

In a astronomical telescope the final image for normal vision is formed at

Question # 13

Monochromatic light means waves of:

Question # 14

Who proposed wave theory of light

Question # 15

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

Question # 16

A ray of light always points

Question # 17

The ratio of the diameter of two convex lenses is the ratio of their focal lengths

Question # 18

A wider objective and the use of blue light of short wavelength produces

Question # 19

Which electromagnetic wave would cause the most significant diffraction effect for an atomic lattice of spacing around 10-10m?

Question # 20

All possible process/processes to get plane polarized light

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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 signal in an optical fibre is totally confined due to the
A. total internal reflection
B. continuous refraction
C. both of them
D. either of them
2 Consider telecommunication through optical fibers.Which of the following statements is not true?
A. Optical fibers may have homogeneous core with a suitable cladding
B. Optical fibers can be of graded refractive index
C. Optical fibers are subject to electromagnetic interference from outside
D. Optical fibers have extremely low transmission loss
3 If a light of λ = 588 nm falls on half silvered glass plate in Michelson s interferometer if movable mirror is moved through 0.233 mm the number of fringes will be observed to shift
A. 795
B. 792
C. 786
D. None
4 The speed at which light travels within the material depends upon
A. Refractive index of medium
B. Wavelength
C. Frequency
D. Intensity
5 The speed of light in a medium of refractive index 1.5 is
A. 3 x 108ms-1
B. 4.5 x 108ms-1
C. 2.0 x 108ms-1
D. None of these
6 In cause of YDS experiment, the distance between adjacent bright fringes is given by
A. Δy =λL/d
B. ΔY = L/λd
C. ΔY =λ/L
D. None of these
7 Which phenomenon of light conclusively prove that light waves are transverse waves
A. Reflection
B. Diffraction
C. Interference
D. Polarization
8 In Michelsion's interferometer, if 'm' number of fringes are passed in front of a reference point when the moveable mirror is moved a distance L, then
A. L = mλ
B. L = 2mλ
C. L = mλ/2
D. L = 3/2 mλ
9 The speed of light in vacuum is 3 x 108 ms-1.Its speed in a medium of refractive index 1.5 will be
A. 6.5 x 108
B. 2 x 108 ms-1
C. 4.5 x 108 cm
D. 5.5 x 108
10 While viewing a distant object with a telescope suddenly a housefly sits on objective lens.The correct statement is that
A. Housefly will be seen enlarged in image
B. Housefly will be seen reduced in image
C. Intensity of image will be decreased
D. Intensity of image will be increased

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