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

Least distance of distinct vision

Question # 2

An optical fiber carries data in the form

Question # 3

In diffraction grating has feature/features like

Question # 4

A typical diffraction grating has lines per centimeter is about

Question # 5

In case of a point source, the shape of the wavefront is

Question # 6

Plane microwaves are incident on a long slit having a width of 5 cm.The wavelength of the microwaves if the first minima is formed at 30° is

Question # 7

Two sources of waves are called coherent if

Question # 8

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

Question # 9

In case of destructive interference of two waves, the amplitude of the resultant wave will be_______either of the waves:

Question # 10

Light is a type of energy which produces sensation of

Question # 11

The light produced by a laser is all the following except

Question # 12

When the light is incident on polarizing angle which of the following is completely polarized?

Question # 13

Who devise the experimental arrangement in 1801 for studying interference effects of light

Question # 14

In a spectrometer experiment monochromatic light is incident normally on a diffraction grating having 4.5 x 105 lines per meter.The second order line is seen at an angle of 30 to the normal what is the wavelength of the light?

Question # 15

Alexander graham bell transmits a voice message via a

Question # 16

To observe the phenomenon of interference of light, the light should be

Question # 17

If N is the number of rulings on the grating, then the resolving power in the mth order diffraction equals to

Question # 18

The regular array of atoms in a crystal has spacing of the order of

Question # 19

Basic principle of an optical fibre is

Question # 20

A spherical wavefront is that which has

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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 In case of point source of light, shape of wavefront is:
A. Spherical
B. Cylindrical
C. Plane
D. None of these
2 A single converging lens placed close to the eye to see magnified image is called
A. A telescope
B. Compound microscope
C. Simple microscope
D. None of these
3 In thin film colours are due to
A. Reflection
B. Interference
C. Diffraction
D. Refraction
4 A prism splits a beam of white light into its seven constituent colors.This is so because
A. Phase of different colors is diferent
B. Amplitude of different colors is different
C. Energy of different colors is different
D. Velocity of different colors if different
5 Which one light source can travel faster through optical fibre is
A. Infra red
B. Visible
C. Ultra violet
D. All of these
6 If the magnification M1 = 20.0 for objective and M2 = 12.0 then total magnification is
A. 200
B. 240
C. 260
D. 280
7 The transmitter in optical fiber system contains a device called
A. LED
B. Diode
C. Transistor
D. None of these
8 Such a surface on which all the points have the same phase of vibration is known as
A. wavefront
B. amplitude
C. displacement
D. all of them
9 When refractive index of core is 1.50 and of 1.48 of cadding then find the angle of entry for an optical fibre is
A. 11.2o
B. 14.2o
C. 15.4o
D. 13.6o
10 Why laser rays are used to measure long distance?
A. Laser rays propagate in a straight
B. Laser rays are not absorbed
C. Laser rays are most coherent waves
D. Laser rays are high velocity waves

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