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

The function of colimator is

Question # 2

The magnification of a compound microscope of object and eye piece of focal lengths f0and fe, respectively is

Question # 3

When an image formed by the objective lies at the focus of both the objective and the eye-piece, the telescope is said to be in

Question # 4

Consider telecommunication through optical fibers.Which of the following statements is not true?

Question # 5

Light waves produce interference when

Question # 6

Successive dark and bright fringes are formed each time the moveable mirror in Michelsion's interferometer is moved a distance

Question # 7

The least distance of distinct vision changes with

Question # 8

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

Question # 9

If λ = 589 nm   d=1.0 mm  L=225 cm then fringe spacing ΔY is given by  

Question # 10

For destructive interference the path difference is give by:

Question # 11

In Michelsons interference the movable mirror is moved and a shift of two fringes is observed then the distance moved by the mirror is

Question # 12

When refractive index of core is 1.50 and of 1.48 of cadding then find the angle of entry for an optical fibre is

Question # 13

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

Question # 14

In Newton's rings the point of contact of the lens and the glass plate, the air film is

Question # 15

Michelson's interferometer is an instrument used to measure the distance with

Question # 16

Longitudinal waves do not exhibit

Question # 17

A single step index fibre can carry more than

Question # 18

Basic principle of an optical fibre is

Question # 19

When θ = 0 in relation d sinθ = λ, the path difference between the rays coming out from the slits of the grating will be zero. So the image in this directions is

Question # 20

The regular array of atoms in a crystal forms a natural diffraction grating of spacing typically

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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 light source used in multimode step index fibre is
A. A monochromatic source
B. Red light
C. White light
D. None of these
2 Which does not show polarization?
A. Longitudinal waves in gas
B. Transverse wave in gas
C. Both A and B
D. None of these
3 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
4 The velocity of light in vacuum can be changed by changing:
A. Frequency
B. Amplitude
C. Wavelength
D. None of these
5 The image of the tip of a needle is never sharp because of
A. Polarization of light
B. Interference of light
C. Diffraction of light
D. Reflection of light
6 In which mode, the refractive index steps down form 1.52 to 1.48 at the boundary with the cladding?
A. Single mode step index
B. multimode step index
C. multimode graded index
D. all of them
7 Which of the following theories of light are explained by the Young's double slit experiment?
A. wave theory of light
B. particle nature of light
C. dual nature of light
D. corpuscular nature of light
8 Power loss taken place when a light signal travels along fibres by
A. Multiple reflection
B. Light absorbed due to impurities in glass
C. At joint some light is scattered by group of atoms
D. All of these
9 The frequency of light ray is 6 x 1014 Hz. The frequency when it propagates in a medium of refractive index 1.5 will be
A. 6 x 1014 Hz
B. 4 x 1014 Hz
C. 9 x 1014 Hz
D. 1.67 x 1014 Hz
10 The property of light which makes light possible to be transmitted into inaccessible place is
A. Interference
B. Diffraction
C. Polarization
D. None of these

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