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

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Question # 1

Fire optics has ability to transmit

Question # 2

The unpolarized light is

Question # 3

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

Question # 4

The least distance of he distinct vision is

Question # 5

The bright fringes are termed as

Question # 6

In viewing the distant objects the angle subtended at the telescope is

Question # 7

The tip of a needle does not give a sharp image it is due to

Question # 8

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 # 9

Graham Bell photo phone used a modulated beam of

Question # 10

When a light signal travels along the length of the optical fibre, the power lost by it is due to

Question # 11

The speed of light in vacuum or in air is

Question # 12

A fibre optic communication system consists of

Question # 13

The time taken by light for its passage from M to m and back is

Question # 14

For a monochromatic light passing from air to glass, which one of the following statement is true?

Question # 15

Newton's rings are formed as a result of

Question # 16

A convex lens has focal length F.An object is placed at P then

Question # 17

A plane wavefront is that which has source

Question # 18

The light signal in graded index fibre is totally confined due to

Question # 19

The fringe spacing in case of red light

Question # 20

An object is placed at a distance 18 cm from a convex lens. The image is formed at a distance of 9 cm the focal length of the lens is

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Sr.# Question Answer
1 The colour of light is determined by is
A. Wavelength
B. Frequency
C. Velocity
D. Amplitude
2 Zero order image formed by the grating when the angle the along the direction of normal to grating is
A. Zero
B. 90o
C. 180o
D. None of these
3 In the thin film, the path difference of two reflected ray depends upon
A. Thickness of the film
B. Nature of the film
C. Angle of incidence
D. All of these
4 Michelesion's interferometer is an instrument usually used to measure
A. intensity of light
B. speed of light
C. wavelength of light
D. dispersion of light
5 The magnifying power of a simple microscope can be increased if we use eye piece of
A. Higher focal length
B. Smaller focal length
C. Higher diameter
D. Smaller diameter
6 Which of the following gives three regions of the electromagnetic spectrum in order of increasing wavelength?
A. Gamma rays,microwaves,visible radiation
B. Ultraviolet infra-red microwaves
C. Radio waves ultraviolet X-rays
D. Visible radiation gamma rays radio waves
7 The minimum number of lenses used in compound microscope is
A. 1
B. 2
C. 3
D. 4
8 Which electromagnetic wave would cause the most significant diffraction effect for an atomic lattice of spacing around 10-10m?
A. microwave
B. infrared
C. ultraviolet
D. X-ray
9 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
10 The lower refractive index the fibre core has
A. 1.48
B. 1.40
C. 1.54
D. 1.42

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