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 idea of light as wave produced by

Question # 2

Colours seen on oily water surface by the incident white light is due to

Question # 3

Two monochromatic radiations X and Y are incident normally on a diffraction grating.The second order intensity maximum for X coincides with the third order intensity maximum for Y what is the ratio wavelength of X/wavelength of Y?

Question # 4

A beam of light enters air from water.Which of the following characteristics of light will not change in water

Question # 5

Wavelength of red color as compared to that of violet color is

Question # 6

In young s interference experiment one slit is covered with a cellophane paper which absorbs half the intensity then

Question # 7

If 'd' 'm' and fringe spacing ΔY are known, the interference effect due to light of λ

Question # 8

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

Question # 9

Which effect provides direct experimental evidence that light is a transverse rather than a longitudinal wave motion?

Question # 10

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

Question # 11

Two layers optical fibre in which central layer is called core which has refractive index

Question # 12

The components of a fibre optic communication system is/are

Question # 13

In compound microscope the focal length of eye piece is

Question # 14

To observe diffraction phenomenon the size of a obstacle

Question # 15

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 # 16

Choose the correct statement

Question # 17

Optical fibres function on the principle of

Question # 18

To increase the magnification of a telescope

Question # 19

The twinkling of stars is due to

Question # 20

For which color of light the refractive index of glass is larger

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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 We can observe only when the grating spacing is
A. of the order of the wavelength used
B. greater than the wavelength used
C. less than the wavelength used
D. any one of them
2 Analyzer is use to
A. Polarize the light
B. Un-polarize the light
C. Check whether the light is polarized or un polarized
D. Rotate the plane of polarized light
3 Two light sources obtained from single source are called
A. non-coherent sources
B. coherent sources
C. monochromatic sources
D. spherical sources
4 The setting of Newton's rings is
A. A Plano convex lens and the plane glass plate
B. A Plano convex lens and simple glass sheet
C. A Plano convex lens (long focal length) and the plane of glass plate
D. None of these
5 The relation d sinθ = nλ, where 'n' is the
A. Number of bright fringes
B. Number of dark fringes
C. Order of the spectrum
D. None of these
6 According to WH Bragg and WL Bragg monochromatic beam of X-rays was reflected form a crystal plane is like a
A. Smooth and regular
B. Mirror
C. Thin film
D. None of these
7 In multi-mode step index optical fibre, that layer is called cladding which has
A. higher refractive index
B. lower refractive index
C. both of them
D. none of them
8 Which effect provides direct experiment evidence that light is a transverse rather than a longitudinal,wave motion?
A. Light can be diffracted
B. Two coherent light waves can be made to be interfere
C. The intensity of light from a point source falls off inversely as the square of the distance from the source
D. Light can be polarized
9 The typical wavelength of light source in transmitter is
A. 1.1 μm
B. 1.2 μm
C. 1.3 μm
D. 1.4 μm
10 In thin film colours are due to
A. Reflection
B. Interference
C. Diffraction
D. Refraction

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