MDCAT Physics Chapter 7 Light Online Test With Answers

MDCAT Physics Chapter 7 Light Online Test

Sr. # Questions Answers Choice
1 In case of diffraction grating, unit of grating element is: Centimeter Kilometer As that of g as that of angle
2 Phenomenon of interference and diffraction support the: Quantum nature of light Tranverse nature of light Wave nature of light Complex nature of light
3 The phenomenon of blending of around edges of an obstacle is called: Interfarance Defraction Polorisation None of above
4 To find wavelength of light by his experiment. Newton utilized: Principle of phase change Snell's Law Bragg's law Both (A) and (C)
5 In Michelson's interferometer , the plates are placed in front of incident ray at an angle of: 45<sup>o</sup> 60<sup>o</sup> 90<sup>o</sup> 120<sup>o</sup>
6 In Micheal sons interfrometes apparatus the numbers of mirrors and glas plates are used respectively ara 2,2 2,3 3,2 3,3
7 To wavelength of light by his experiment , Newton utilized: Wavelength of light Intensity of light amplitude wave None of above
8 In newton's rings see through the reflected light, centeral spo is: Bright Dark Either of the Two None of these
9 Newton's rings are: Rectangular Spherical Concentric circles None of these
10 In newton's rings apparatus, we also use: Spectroscope Telescope Microscope Any of these
11 Newton's rings are: Concetric circles spherical None of these Rectangular
12 The central ring is bright in case of newton's ring produced by: Reflected light Transmitted light Wedged film None of above
13 Newton's rings are formed due to: Manetisation Diffractin Interference Polarization
14 A _____ lens is used in the apparatus to get newton's ring: Plano-concave Plano-convex Convexo concave Double covex
15 In case of interference fringes: Energy is destroyed at dark Energy is created at bright fringes Energy is transferred from dark to bright ringes None of these
16 The distance between different interference fringes are: Variable Same Different None of these
17 Conditions for interference are that the two sources should be coherent and: At the far off distance Close together Coinciding None of these
18 The blending of light when it passes from one medium to another is known as: Refraction Interfarance Polarization Both (B) and (C)
19 YDS experiment can be used to determine: Grating element Fringe spacing Wave length of monochromatic light Frequency of wave light
20 In YDS experiment, data given isλ=500 nm, d=1 mm, L=100cm,∆y come out to be: 0.5 cm 0.5 mm 0.5 nm 0.5 m
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