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

A convex lens is dipped in a liquid whose refractive index is equal to the material of the lens. Then its focal length will become

Question # 2

The phenomenon of blending of around edges of an obstacle is called:

Question # 3

Diffraction effect is

Question # 4

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

Question # 5

Which of the following cannot be polarized?

Question # 6

Which phenomenon of light takes place in Young's double-slit experiment?

Question # 7

 In the phenomenon of interference, the bright and dark fringes are of

Question # 8

If a point source of light is placed at the focus of a convex lens the rays coming out of the lens will constitute

Question # 9

Which of the following colors will have minimum critical angle when light passes from glass to air

Question # 10

Huygen's theory cannot explain:

Question # 11

Given that grating element = 0.2 x 10-3cm in case of a diffraction grating. Then number of lines per centimeter will be

Question # 12

Refractive index of material depends upon

Question # 13

According to Young s experiment if frequency of light used is halved then fringe width becomes

Question # 14

Telescope is an optical device used for viewing

Question # 15

In an interference pattern of Ypung's double Slit (YDS) experiment:

Question # 16

The power loss can also take place due to

Question # 17

An object is placed at a distance of 200 cm from a convex lens of focal length 10 cm the linear magnification is

Question # 18

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

Question # 19

Wavelength of light, on the average, is given by

Question # 20

How many phone calls can be carried by single mode step index fibre

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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 angle of incidence at which angle of refraction becomes 900 is called
A. Incident angle
B. Angle of refraction
C. Critical angle
D. Phase angle
2 The sky appears blue because
A. Red light is absorbed
B. Blue light is scattered the most
C. Blue light is absorbed
D. It is its natural color
3 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
4 An object is placed between two parallel mirrors the number of images formed is
A. 2
B. 4
C. 8
D. Infinite
5 In Huygen's wave theory the locus of all points in the same state of vibration is called
A. A half-period zone
B. Vibrator
C. Wave front
D. A ray
6 An optical fibre with its protective case may be typically 6.0 mm in diameter and yet it can replace bundle of copper of diameter
A. 6.79 cm
B. 6.95 cm
C. 7.52 cm
D. 7.62 cm
7 Spectrum of sun consists of
A. Bright lines
B. Dark lines
C. Bright bands
D. Dark bands
8 Sun has elliptical shape when it rises and sets due to
A. Refraction
B. Reflection
C. Scattering
D. Dispersion
9 The position of a new wavefront after a certain interval of time can be found by constructing a surface that is
A. A tangent
B. A tangent envelope
C. Curved surface
D. None of these
10 In spectrometer the function of collimator is to produce
A. Diverging beam of light
B. Converging beam of light
C. Parallel beam of light
D. None of these

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