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

X-rays is a type of electron magnetic radiations of much shorter wavelengths of the order of

Question # 2

Huygen's wave theory of light cannot explain

Question # 3

The relation for the diffraction pattern, when it is minimum

Question # 4

In single slit diffraction the condition for second minimum is

Question # 5

Which of the following is the most common method to obtain polarized light?

Question # 6

In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?

Question # 7

The limit of which a microscope can be used to resolve details of an object, demands

Question # 8

2 d sin θ = nλ can be used to determine the

Question # 9

The speed at which light travels within the material depends upon

Question # 10

A line which represents the direction of travel of a wave is known as:

Question # 11

If a light of λ = 588 nm falls on half silvered glass plate in Michelson s interferometer if movable mirror is moved through 0.233 mm the number of fringes will be observed to shift

Question # 12

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity:

Question # 13

Measurement of a standard metre in terms of the wavelength of red cadmium light is

Question # 14

The diffraction grating is used to determine

Question # 15

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

Question # 16

In Bragg's Equation 2d sin θ = nλ, where 'n' is

Question # 17

The phenomenon of diffraction also contains the phenomenon of

Question # 18

What is the main cause of the shinning of diamond?

Question # 19

The most common method to obtain plane polarized light by using dichoric substance is:

Question # 20

Which one of the following phenomenon cannot be explained by the wave theory of light ?

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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 At what distance should a book be placed from a 50 Cd bulb so that the luminance on the book becomes 2 Im m-2
A. 50 m
B. 10 m
C. 5 m
D. 1 m
2 A grating with high resolving power can distinguish ______ difference in ______
A. Smaller, amplitude
B. Greater, wavelength
C. Smaller, wavelength
D. Greater, intensity
3 If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope
A. Decreases
B. Increases
C. Gets halved
D. Remains unchanged
4 A wider objective and the use of blue light of short wavelength produces
A. Interference
B. Diffraction
C. Less diffraction
D. Polarization
5 If the wavelength of light used in Michelsion's interferometer is 400 nm and the moveable mirror only moved throughλ/4, then the length moved will be
A. 10 nm
B. 10-2mm
C. 1 nm
D. 10-4mm
6 A sun rise or sun set the sun looks reddish because
A. The sun is coldest at these times
B. Of the effects of reflection and refraction
C. The sun is hottest at these times
D. Of the scattering of light
7 Single mode step index fibre has feature/s like
A. Very thin core
B. 5 (μm) miameter
C. Relatively large cladding
D. All of these
8 The light signal in an optical fibre is totally confined due to the
A. total internal reflection
B. continuous refraction
C. both of them
D. either of them
9 The direction of a ray of light is.......to the wave front.
A. Parallel
B. Equal
C. Opposite
D. Perpendicular
10 The wave length of x-rays is of the order of
A. 10-17 m
B. 10-4 cm
C. 10-9 m
D. 10-10 m

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