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

The astronomical telescope consists of objective and eye piece.The focal length of he objective is

Question # 2

A converging lens in used to from an image on a screen when the upper half of the lens is covered by an opaque screen

Question # 3

If the distance of a surface from light source is doubled,then the luminance will become

Question # 4

A typical diffraction grating has lines per centimeter is about

Question # 5

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

Question # 6

If focal length of objective is increased

Question # 7

The laser light used in an optical fiber system has a wavelength equal to

Question # 8

In Michelson interferometer if the moveable mirror is moved through a distance of 8λ then the number of fringes shifted are

Question # 9

Geometrical optics cannot give following characteristics for a microscope

Question # 10

The contrast in the fringes in an interference pattern depends upon

Question # 11

The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself

Question # 12

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 # 13

The property of light which does not change with the nature of the medium is

Question # 14

The magnifying power of a compound microscope can be increased if we use objective lens of

Question # 15

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

Question # 16

The fine rulings on a compact disc as a diffraction grating but each line is wide like

Question # 17

How many fringes will pass a reference point if the moveable mirror of a Michelson s interferometer is moved 0.06 mm The wavelength of light used is 5.89 x10-3 mm

Question # 18

X-rays interact with

Question # 19

To observe diffraction phenomenon the size of a obstacle

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 The phenomenon of polarization proves that the light waves are
A. Transverse wave
B. Longitudinal waves
C. Stationary waves
D. None of these
2 How are X-rays diffracted by crystals in X-rays crystallography?
A. they bounce off the nucleus
B. they are diffracted whey they pass from between them acting as a slit
C. they are diffracted by the electron clouds in the atoms
D. they hit the side the nucleus and change direction and thus are diffracted
3 One cannot see through fog becuase
A. Fog absorbs light
B. The refractive index of fog is infinity
C. Light suffers total reflection at the droplet in a fog
D. Light is scattered by the droplets in fog
4 If the vibrations of the light wave are confined to one plane only, then this light is called
A. unpolarized ligth
B. polarized light
C. sunlight
D. none of them
5 The ratio of the diameter of two convex lenses is the ratio of their focal lengths
A. Greater than
B. Less than
C. Equal to
D. None
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 magnification of a simple microscope of focal length 5cm is
A. 3
B. 5
C. 6
D. 20
8 Which of the following is conserved when light waves interfere?
A. Intensity
B. Energy
C. Amplitude
D. Momentum
9 In which of the optical fibres, the propagation of light signal is through continuous refraction?
A. multi-mode step index fibre
B. multi-mode graded index fibre
C. both of them
D. none of them
10 In a simple microscope if the final image is located at infinity then its magnifying power is
A. 25/f
B. 25
C. f/25
D. [1 + (25/f)]

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