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 resolving power of a grating spectrometer is

Question # 2

An optical instrument used to see very far off objects is called

Question # 3

In YDS experiment using white light

Question # 4

A usual way to obtain a plane wave is to place point source of light at the focus of a

Question # 5

Which one of the following can act approximately as a source of monochromatic light:

Question # 6

In case of YDS experiment, the distance of the mth bright fringe on the screen from center is

Question # 7

In a diffraction fringes pattern the fringes are

Question # 8

In newton's rings apparatus, we also use:

Question # 9

The tip of a needle does not give a sharp image it is due to

Question # 10

Which of the following is conserved when light waves interfere?

Question # 11

Signal from a remote control to the device operated by it travels with the speed of:

Question # 12

The focal length of the lens of human eye

Question # 13

The length of a telescope is 36 cm.The focal lengths of its lenses can be

Question # 14

When two lights waves travelling in the same direction are in phase at any point, they producing

Question # 15

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 # 16

The magnification is negative for

Question # 17

Sky seems blue due to

Question # 18

The fibre core has constant refractive index such as

Question # 19

Which is having minimum wavelength?

Question # 20

If focal length of objective is increased

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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 Proportion of light in an optical fibre requires that the light-should be within the fibre
A. Very little confined
B. Largely confined
C. Totally confined
D. None of these
2 Which phenomenon of light conclusively prove that light waves are transverse waves
A. Reflection
B. Diffraction
C. Interference
D. Polarization
3 If the angle of refraction is 90o, for which the angle of incidence is called
A. Incident angle
B. Critical angle
C. Angle of emergence
D. None of these
4 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
A. ≈ 200 mm
B. ≈ 210 mm
C. ≈ 213 mm
D. ≈ 233 mm
5 When two light waves travelling in the same direction are out of phase at any point, their resultant amplitude
A. increases
B. decreases
C. remains unchanged
D. increases rapidly
6 If a point source of light is placed at the focus of a convex lens the rays coming out of the lens will constitute
A. Plane wave fronts
B. Cylindrical wave fronts
C. Spherical wave fronts
D. All of above
7 All possible process/processes to get plane polarized light
A. Reflection from different surfaces
B. Refraction through crystals
C. Scattering by small particles
D. All of these
8 The idea of light as wave produced by
A. Huygen
B. Newton
C. Thomos Young
D. Michelson
9 The critical angle for a ray of light suffering total internal reflection will be smallest for the ray traveling from
A. Water to glass
B. Water to air
C. Glass to air
D. Glass to water
10 Let a ray of light enters from air into two media of different refractive indices. The speed of light will be ______ to refractive index
A. Directly proportional
B. Inversely proportional
C. Sometimes inversely
D. Equal

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