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

Ordinary light has components of vibration in

Question # 2

Intensities of the two waves of light are I and 4I.The maximum intensity of the resultant wave after superposition is

Question # 3

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

Question # 4

For incident angles equal or greater than the critical angle the glass air boundary will act as a

Question # 5

Huygen's wave front which sends out secondary wavelets with a speed equal to

Question # 6

The regular array of atoms in a crystal has spacing of the order of

Question # 7

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

Question # 8

The contrast in the fringes in any interference pattern depends on

Question # 9

The cause of mirage observed in deserts in bright sunlight is due to:

Question # 10

The phase difference between two points on a wave front will be

Question # 11

The unpolarized light is

Question # 12

Sky seems blue due to

Question # 13

The image of an object 5 mm length is only 1 cm high. The magnification of the lens is

Question # 14

Multimode step index fibre has diameter as

Question # 15

In Huygen's wave theory the locus of all points in the same state of vibration is called

Question # 16

The ability of an instrument of reveal the minor details of an object under examination is called

Question # 17

When observed by transmitted light, the central band of newton's ring system consists of:

Question # 18

The diameter of an optical fibre with its protective case may be typically

Question # 19

In an optical fibre the speed of light is

Question # 20

In a spectrometer experiment monochromatic light is incident normally on a diffraction grating having 4.5 x 105 lines per meter.The second order line is seen at an angle of 30 to the normal what is the wavelength of the 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 Two light sources obtained from single source are called
A. non-coherent sources
B. coherent sources
C. monochromatic sources
D. spherical sources
2 The relation for the diffraction pattern, when it is minimum
A. d/2 sin θ = λ
B. sin θ = λ/2
C. d sin θ = λ
D. None of these
3 A ray of light always points
A. Anti parallel to wave front
B. Perpendicular to wave front
C. Parallel to wave lets
D. None
4 A light wave produced by oscillating charge consists of a periodic variation of
A. electric field
B. magnetic field
C. either of them
D. both of them
5 Fringe spacing in YDS experiment will be maximum if we use:
A. Red light
B. Green light
C. Violet light
D. Blue light
6 Which one of the following can act approximately as a source of monochromatic light
A. Neon lamp
B. Fluorescent tube
C. Sodium lamp
D. none of these
7 For destructive interference the path difference is give by:
A. (m-1/2)λ
B. (m+1/2)λ
C. mλ
D. 1/2 mλ
8 The total internal reflection takes place for glass-air boundary is then the angle is
A. Equal to 41.8o
B. Greater than 41.8o
C. Less than 41.8o
D. None of these
9 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
10 X-ray diffraction has been very useful in determining structure of
A. Hemoglobin
B. Double helix structure of DNA
C. Blood speed
D. a and b

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