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 image of the tip of a needle is never sharp because of

Question # 2

The wavelength of X-rays is about

Question # 3

The limit of which a microscope can be used to resolve details of an object, demands

Question # 4

The relation between displacement of the mirror 'L' and wavelength λ of the light used

Question # 5

In Young s double slit experiment the separation between the slits in halved and the distance between the slits and the screen is doubled the fringe with will

Question # 6

The distance between the two mirrors can be varied by

Question # 7

A diffraction grating contains 5000 lines per centimeter, its grating element will be

Question # 8

The points on a Huygen's wave front which sends out secondary wavelets are also

Question # 9

The minimum distance between an object and its image in a convex lens is

Question # 10

The normal human eye can focus a sharp image of an object located anywhere form infinity to a certain point called

Question # 11

The ratio of diameters of two convex lenses is ______ the ratio of their focal lengths

Question # 12

The concentration in solution can be determined by the property known as

Question # 13

A thin film is a transparent medium whose thickness is comparable with the wavelength of

Question # 14

If plane polarized light is incident on the second sheet of Polaroid, the light emitted is full light when their axes are

Question # 15

When sunlight falls on a soap bubble (film), it appears coloured because of

Question # 16

In multimode graded index fibre core and cladding has boundary

Question # 17

In Newton,s rings apparatus, we also use

Question # 18

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

Question # 19

Polaroid glass is used in sun glasses because

Question # 20

If d = 0.25 cm   Y = 0.059 cm   L = 100 cm    m = 2 then λ is equal to

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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 Soap bubble looks colored due to
A. Dispersion
B. Reflection
C. Interference
D. Any one of these
2 The light which has components in all directions is called
A. unpolarized light
B. polarized light
C. intense light
D. none of them
3 One cannot see through fog because
A. Fog absorbs light
B. The refractive index of fog is infinity
C. Light suffers total reflection at the droplet in a fog
D. Light is scattered by the droplets in fog
4 When light signal travels along fibres, the power losses are mainly due to
A. scattering
B. absorption
C. both of them
D. either of them
5 A line normal to the wavefront including the direction of motion is called
A. perpendicular line
B. parallel line
C. a ray of light
D. none of them
6 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
A. 6 x 10-5rad
B. 7 x 10-5rad
C. 8 x 10-5rad
D. None of these
7 A compound microscope is consists of objective of
A. Long focal length and short focal length of eye piece
B. Objective of very short focal length and eye piece of long focal length
C. Objective of very short focal length end eye piece of also short focal length
D. None of these
8 For the normal setting of a telescope
A. Only the object is at infinity
B. Only the final image is at infinity
C. Both the object and the final image is at infinity
D. Neither the object nor the final image has to be at infinity
9 Ordinary light has components of vibrations in all possible planes. Such light is
A. Unpolarized light
B. Polarized light
C. Both
D. None of these
10 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?
A. 200 nm
B. 430 nm
C. 500 nm
D. 556 nm

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