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

The time taken by light for its passage from M to m and back is

Question # 2

Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be

Question # 3

In normal adjustment, the length of the telescope is

Question # 4

A converging lens in used to from an image on a screen when the upper half of the lens is covered by an opaque screen

Question # 5

In Young's double slit experiment,the separation between the slits is made 3 fold the fringe width becomes

Question # 6

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

Question # 7

Ordinary light has components of vibrations in

Question # 8

A spectrum which contains all wavelengths without any break is called

Question # 9

The path difference involved in interference in thin films depends upon

Question # 10

In the thin film, the path difference of two reflected ray depends upon

Question # 11

Wave length of red colour as compared to that of violet colour is:

Question # 12

The ultra-purity of optical fibre is

Question # 13

A diffraction grating has 500 liens per mm. its slit spacing or grating element will

Question # 14

A ray of light passing from a rarer to a denser medium

Question # 15

Experimental demonstration of wave nature of light was given in 1801 by

Question # 16

The medium in which speed of light is the same in all directions is called:

Question # 17

The wavelength of refractive wave in a denser medium is

Question # 18

In case of point source of light, shape of wavefront is:

Question # 19

Which type of fibre is used to send the signals of long distances?

Question # 20

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

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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 Wavelength of X-rays falling at a glancing angle of 30° on a crystal with atomic spacing 2 x 10-10m for first order diffraction is
A. 4 x 10-10m
B. 2 x 10-10m
C. 0.2 x 10-10m
D. 20 x 10-10m
2 The spacing between lines of diffraction grating is
A. Opaque
B. Transparent
C. Semi-transparent
D. None of these
3 Signal from a remote control to the device operated by it travels with the speed of:
A. Sound
B. Light
C. Ultrasonics
D. Supersonics
4 In Young's double slit experiment,the separation between the slits is made 3 fold the fringe width becomes
A. 1/3 times
B. 1/9 times
C. 3 times
D. 9 times
5 If 5000 lines/cm are ruled on a diffraction grating, the element is:
A. 5 x 10-5m
B. 2 x 10-6m
C. 5 x 10-6m
D. 2 x 10-5m
6 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
A. 795
B. 792
C. 786
D. None
7 In case of destructive interference of two waves, the amplitude of the resultant wave will be_______either of the waves:
A. Greater than
B. Smaller than
C. Equal to
D. none of these
8 Which of the following converts electrical signals into light signals?
A. optical fibre
B. receiver
C. reflector
D. transmitter
9 In young's slit experiment on interference the ratio of the intensities of a bright band and a dark band is 6 : 1 the ratio of the amplitudes o the interfering waves is
A. 16
B. 5/3
C. 4
D. 1/4
10 Source of light used in the fibre optic communication
A. Led
B. Laser
C. Photo diode
D. Both a and b

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