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

The object is placed at the principle focus of a simple microscope if the focal length of the lens is 2cm what is the magnifying power of the microscope

Question # 2

The fringes produced in Young's double slit experiment will be wider if the distance between the two slits is

Question # 3

The unit of power of a lens is

Question # 4

In an interference fringes pattern the fringes are

Question # 5

The concentration in solution can be determined by the property known as

Question # 6

Huygen's wave theory of light cannot explain

Question # 7

Using monochromatic light, interference fringes are produced on a screen placed a distance D from a pair of slits of separation a.
The separation of the fringes is X.
a is now halved and D is increased by a factor of 4.
What is the new fringe separation?

Question # 8

Electromagnetic waves from a source were found to be significantly diffracted when passing through gaps of the order of 10 m. What type of waves are they likely to be?

Question # 9

In an astronomical telescope the eye piece has the focal length fe if

Question # 10

For the sustained interference of light the necessary condition is that the two sources should

Question # 11

Conditions for interference are that the two sources should be coherent and:

Question # 12

The resolving power of a grating spectrometer is

Question # 13

The lower refractive index the fibre core has

Question # 14

Inverse square law for luminace is valid for

Question # 15

With the help of interferometer, we can find the

Question # 16

An object is placed between the focus and the optical center of the convex lens. The image formed is

Question # 17

The distance between the objective and eye-piece of a telescope in normal adjustment is

Question # 18

If the incident light contains different wavelengths the images of each wavelength for a certain value is diffracted in the

Question # 19

The apparent size of an object depends on the angle subtended but it at the eye. As the angle increases the size of the object

Question # 20

YDS experiment can be used to determine:

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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 resolution of microscope depends on objective's
A. Focal length
B. Material
C. Diameter
D. None of these
2 Which of the following cannot be polarized?
A. x-rays
B. light rays
C. sound waves
D. ultraviolet rays
3 When θ = 0 in relation d sinθ = λ, the path difference between the rays coming out from the slits of the grating will be zero. So the image in this directions is
A. Dark
B. Bright
C. Non image formed
D. None of these
4 Longitudinal waves do not exhibit
A. Refraction
B. Reflection
C. Diffraction
D. Polarization
5 Diffraction of light occurs, due to the interference between rays coming from the same wavefront of
A. The same parts
B. The different parts
C. Mixed rays
D. None of these
6 The regular array of atoms in a crystal has spacing of the order of
A. 10-16m
B. 10-14m
C. 10-10m
D. 10-6 m
7 Electromagnetic waves from a source were found to be significantly diffracted when passing through gaps of the order of 10 m. What type of waves are they likely to be?
A. gamma waves
B. light waves
C. microwaves
D. radiowaves
8 The digital modulation is expressed in
A. Bytes
B. Codes
C. Bits
D. None of these
9 Fringe spacing in YDS experiment will be maximum if we use:
A. Red light
B. Green light
C. Violet light
D. Blue light
10 The time taken by the mirror M to rotate through an angle 2π/8 is
A. 1/8 f
B. 1/16 f
C. 1/4 f
D. 1/2 f

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