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

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MDCAT Physics Chapter 7 Light Online Test

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Question # 1

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 # 2

The path difference and phase difference are related to each other as

Question # 3

The multi-mode step index optical fibre, the central core has

Question # 4

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

Question # 5

A diffraction grating of length 2cm has 4000 lines The grating element is

Question # 6

A microscope has an objective lens of 10 mm focal length and an eye piece of 25.0 mm focal length what is the distance between the lenses

Question # 7

Which of the following phenomenon cannot take place if we consider light as longitudinal wave?

Question # 8

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 # 9

In young's double slit experiment the separation between the slit is halved and distance between the slit and screen is doubled.The fringe width is

Question # 10

Two sources of waves are called coherent if

Question # 11

The relation d sinθ = nλ, where 'n' is the

Question # 12

The magnifying power of a simple microscope can be increased if we use eye piece of

Question # 13

In case of destructive interference of two waves, the amplitude of the resultant wave will be ______ either of the waves

Question # 14

When a mirror of a Michelsion's interferometor is moved a distance of 0.5 mm, 2000 fringes are observed, the wavelength of the light used is

Question # 15

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

Question # 16

Rainbow is formed due to combination of

Question # 17

Spectrometer can measure quite accurately prism

Question # 18

Huygen's principle is used to study the

Question # 19

A spectrometer is used to find

Question # 20

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

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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 X-ray crystallography can be used to get what information about the structure of a compound?
A. the bond angles in a molecules
B. the number of molecules per unit cell
C. a picture of the electron density in a unit
D. all of them
2 An oil surface floating on water surface exhibits beautiful colour patter, which is due to 
A. Reflection of light
B. Diffraction of light
C. Interference of light
D. None of these
3 The light source in the transmitter can be
A. semiconductor laser
B. LED
C. both of them
D. either of them
4 In Michelsion's interoferometer, if the moveable mirror is moved through a distance 0.05 mm and 500 finges are observed, then the wavelength of light used is
A. 1 x 10-7m
B. 2 x 10-7m
C. 1.5 x 10-7m
D. 1 x 10-8m
5 The refracting edge of the prism must be parallel to the axis of rotation of the telescope, so that the turn table is leveled using
A. Screws of the spectrometer
B. Leveling screws
C. Turn table screw
D. None of these
6 Light has:
A. Wave nature
B. Particle nature
C. Dual nature
D. None of them
7 Ultra-violet rays differ from X-rays in that ultra - violet rays
A. Cannot be diffracted
B. Cannot be polarized
C. Do not affect a photographic plate
D. Have a lower frequency
8 Critical angle of light passing from glass to air is minimum for
A. Red
B. Green
C. Yellow
D. Violet
9 A telescope is rotatable about the same vertical axis as the turntable, with a scale which is
A. Main scale
B. Vernier scale
C. Half degree scale
D. None of these
10 The magnifying power of a simple microscope can be increased if we use eye piece of
A. Higher focal length
B. Smaller focal length
C. Higher diameter
D. Smaller diameter

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