MDCAT Physics Chapter 7 Light Online Test With Answers

MDCAT Physics Chapter 7 Light Online Test

Sr. # Questions Answers Choice
1 Fringe spacing in YDS experiment will be maximum if we use: Red light Green light Violet light Blue light
2 If the slits in YDS experiment are made closer, fringe spacing will: Increase Decrease Remain same None of above
3 In YDS experiment, if the distance between the slits and also the distance between slits and screen is doubled, the fringe width: Becomes doubled Becomes 4 times Is halved Remains the same
4 Experimental demonstration of wave nature of light was given in 1801 by: Newton Maxwell Thomas young Compton
5 In YDS experiment, at the center of screen is formed a: Dark fringe Bright fringe No fringe at all None of these
6 In YDS experiment, fringe spacing means the distance between two consecutive_____fringes: Bright Dark Any of A or B None of these
7 In an interference pattern of Ypung's double Slit (YDS) experiment: Bright fringes are wider than dark fringes Dark fringes are wider than bright fringes Both dark and bright fringes are of equal width Central fringes are wider than the outer fringes
8 In case of constructive interference of two waves, the amplitude of the resultant wave is_____either of the waves: Greater than Equal to Smaller than None of these
9 The terms phase difference and path difference are: Same Different Equal None of these
10 In case of destructive interference of two waves, the amplitude of the resultant wave will be_______either of the waves: Greater than Smaller than Equal to none of these
11 To observe interference of light the condition which must be met with is that the sources must be: Monochromatic Phase coherent Both of above None of above
12 Two sources are said to be coherent if they have: Same amplitude Same wavelength Definite phase relation with each other None of them
13 The appearance of colours in the shape (or oil) film results from: Dispersion Interference Reflection Refraction
14 The property of light which does not change with the nature of the medium is: Frequency Amplitude Wavelength None of these
15 A line which represents the direction of travel of a wave is known as: Spherical wavefront Locus Ray Either B or C
16 Huygen's principle states that: Light travels in straight line Light has dual nature Either of these None of these
17 The wave nature of light was proposed by: Newton Thomas Young Huygen None of these
18 Laws of reflection and refraction can also be explained by: Particle nature of light Quantum nature of light Wave nature of light Complex nature of light
19 The speed of secondary wavelets as mentioned in Huygen's principle is______the speed of propagation of the wave itself: Equal to Greater than Smaller than None of these
20 When the source of light is at very large distance, the shape of wavefront is: Spherical Cylindrical Plane None of these
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