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

00:00
Question # 1

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

Question # 2

The cause of power loss in optic fibre is

Question # 3

Which one the following gives three regions of electromagnetic sepctrum in order of increasing wavelength?

Question # 4

For interference to occur,the interfering beams of light must be

Question # 5

The optical fibre has a layer over the central layer is called cladding of refractive index

Question # 6

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

Question # 7

The apparent size of an object depends on the angle subtended but it at the eye. As the angle increases the size of the object

Question # 8

The central point in the Newton's rings is dark due to

Question # 9

Due to dispersion effects, white light source is useful for

Question # 10

A glass plate on which a large number of very fine equidistant parallel lines are drawn is called

Question # 11

Multi-mode step index fibre index fibre is used to send

Question # 12

The fringe spacing in case of blue light

Question # 13

Huygen's wave theory of light cannot explain

Question # 14

Diffraction effect is

Question # 15

Optical device used in spectrometer

Question # 16

For destructive interference the path difference is give by:

Question # 17

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

Question # 18

Michelson,s interferometer can be used to measure

Question # 19

The object is placed at the principle focus of a simple microscope if the focal length of the lens is 2cm what is the magnifying power of the microscope

Question # 20

The typical wavelength of light source in transmitter is

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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 According to Young s experiment the distance between two adjacent bright fringes of blue light is _____ than for oranges light
A. Less
B. Maximum
C. Equal
D. May be less may be greater depending upon slit spacing
2 The diffraction grating is used to measure
A. wavelength of light
B. focal length of a lens
C. refractive index of prism
D. polarization of light
3 A pulse of light in the optical fibres represents the number
A. 0
B. 1
C. 2
D. 3
4 In YDS experiment, condition for constructive interference is that path difference is equal to
A. nλ
B. mλ
C. (n + 1/2)λ
D. (m + 1/2)λ
5 Snell's Law is defined as
A. n1 sin θ2 = n2 sin θ
B. n sin θ1 = n1 sin θ2
C. n1 sin θ1 = n2 sin θ2
D. None of these
6 In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?
A. Single mode step index
B. multimode step index
C. multimode graded index
D. all of them
7 A convex lens of focal length 5 cm is used as magnifying glass Its magnifying power when the image is formed at infinity
A. 6
B. 5
C. 1.5
D. 7
8 Monochromatic light directly means waves of
A. Same frequency
B. Same color
C. Same wavelength
D. All of them
9 The normal human eye can focus a sharp image of an object located anywhere form infinity to a certain point called
A. Far point
B. Near point
C. distant point
D. None of these
10 The minimum distance between an object and its image in a convex lens is
A. 2 f
B. 2.5 f
C. 3 f
D. 3.5 f

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