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

X-ray crystallography can be used to get what information about the structure of a compound?

Question # 2

If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope

Question # 3

Snell's Law is defined as

Question # 4

Calculate the critical angle when core refractive index is 1.50 and cladding of refractive index 1.48

Question # 5

The light form Sun reaches earth in the form of

Question # 6

A lens of 2 cm focal length is to be used as a magnifying glass. Its magnification is

Question # 7

Speed of light in vacuum is

Question # 8

Maximum detail of object can be seen from a microscope wen light used is of

Question # 9

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

Question # 10

The eye piece of a compound microscope acts as a

Question # 11

If the wavelength of light used in Michelsion's interferometer is 400 nm and the moveable mirror only moved throughλ/4, then the length moved will be

Question # 12

A polarizer is used to

Question # 13

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

Question # 14

Power of a lens is equal to

Question # 15

The polarized can be achieved by using process like

Question # 16

An oil film floating on water surface show colours due to

Question # 17

To observe diffraction phenomenon the size of a obstacle

Question # 18

The light source used in multimode step index fibre is

Question # 19

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?

Question # 20

The light signals are sent from the source

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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 A tourmaline crystal is being used as an analyzer In one complete rotation of the crystal the number of excitation will be
A. 0
B. 1
C. 2
D. 4
2 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
A. 5000 mm
B. 5000°A
C. 500 cm
D. 2000°A
3 The light form Sun reaches earth in the form of
A. plane wavefront
B. circular wavefront
C. spherical wavefront
D. elliptical wavefront
4 While viewing a distant object with a telescope suddenly a housefly sits on objective lens.The correct statement is that
A. Housefly will be seen enlarged in image
B. Housefly will be seen reduced in image
C. Intensity of image will be decreased
D. Intensity of image will be increased
5 A thin layer of oil on the surface of water looks colored due to:
A. Diffraction of light
B. Reflection of light
C. Dispersion of light
D. Interference effect of light
6 In photo phone modulated beam of reflected sun light focused on a detector several hundred meters away with the divice
A. Germanium
B. Selinium
C. Silicon
D. None of these
7 Optical fibres function on the principle of
A. reflection
B. refraction
C. total internal reflection
D. total internal refraction
8 The phenomenon of diffraction can be exhibited by
A. Polarized waves only
B. Un polarized waves only
C. Longitudinal waves only
D. All polarized or un polarized waves and longitudinal or transverse waves
9 In which situation does diffraction occur?
A. a wave bounces back from a surface
B. a wave meets another wave to produce a new wave
C. a wave passes from one medium into another
D. a wave passes through an aperture
10 The interference fringes are of
A. equal width
B. variable width
C. zero width
D. non-uniform width

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