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

Who proposed that light energy form a luminous source travels in space by means of wave motion?

Question # 2

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 # 3

In case of a point source, the shape of the wavefront is

Question # 4

If the light travels in a straight line, the central region should appear

Question # 5

The distance between two concentric wave fronts is

Question # 6

Ordinary light has components of vibration in

Question # 7

When monochromatic light is incident, making certain angle, on a thin parallel film, the interference fringes formed are

Question # 8

The light signal in an optical fibre requires that the light should

Question # 9

At the point of contact of the lens and the glass plate, the incident and reflected rays interfere

Question # 10

The length of the standard metre measured by Michelsion's interferometer comes out to be

Question # 11

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

Question # 12

The position of a new wavefront after a certain interval of time can be found by constructing a surface that is

Question # 13

For obtaining equal and same height mirror should be

Question # 14

A typical diffraction grating has lines per centimeter is about

Question # 15

When the movable mirror moves, the distance λ/4 the total path difference would be

Question # 16

Ray optics is valid,when characteristic dimensions are

Question # 17

Which of the following theories of light are explained by the Young's double slit experiment?

Question # 18

The wave propagates in space by the motion of the

Question # 19

When an image is placed at the focal length of the eye piece, the final image formed at

Question # 20

For constructive interference path difference should be

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MCAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The fine rulings on a compact disc as a diffraction grating but each line is wide like
A. 0.01 μm
B. 0.5 μm
C. 0.05 μm
D. 0.6 μm
2 The most common method to obtain plane polarized light by using dichoric substance is:
A. Selective absorption
B. Reflection from different surfaces
C. Refraction from different surfaces
D. Scattering
3 A diffraction grating of length 2cm has 4000 lines The grating element is
A. 0.5 x 10-2 cm
B. 5 x 104
C. 5 x 10-4
D. 0.5 x 10-4 cm
4 A ray of light always points
A. Anti parallel to wave front
B. Perpendicular to wave front
C. Parallel to wave lets
D. None
5 The idea of Michelsion's interferometer is based on the
A. reflection of light
B. interference of light
C. refraction of light
D. all of them
6 Such type of fibre in which center core is of high refractive index and the layer over the central core is low refractive index is called
A. Step index fibre
B. Multi mode step index fibres
C. Multimode graded index fibre
D. None of these
7 The plane of polarization is rotated many degrees when a thickness of such crystal is
A. One millimeter
B. Less than one millimeter
C. A few millimeter
D. None of these
8 In YDS experiment, if the distance between the slits and also the distance between slits and screen is doubled, the fringe width:
A. Becomes doubled
B. Becomes 4 times
C. Is halved
D. Remains the same
9 To wavelength of light by his experiment , Newton utilized:
A. Wavelength of light
B. Intensity of light
C. amplitude wave
D. None of above
10 The angle with the horizontal at which an underwater swimmer will see the setting sun is
A. 91°
B. 32°
C. 49°
D. 69°

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