Refraction of Light at Plane Surfaces Class 10 ICSE Physics MCQ Questions
Looking for Refraction of Light at Plane Surfaces Class 10 ICSE Physics Chapter 4 MCQ Questions? If yes, You are the right page. Here we have provided ICSE class 10 physics chapter 4 multiple choice questions and answers. All MCQ are important.
1) In reflection of light the angle of reflection is
a) equal to angle of incidence
b) greater than angle of incidence
c) less than angle of incident
d) Both (a) &(b)
Ans- option (a)
2) When light travel from air to glass it
a) bend away from normal
b) bend towards the normal
c)does not bend
d)none of these
Ans- option (b)
3) When ray of light travel from glass to air then deviation of ray is
a) i-r b) zero
c) r-i d) 90
Ans-option (c)
4) Refraction causes due to
a) change in wavelength of light
b) change in speed of light
c) change in frequency of light
d) Both (a) & (c)
Ans- Option (b)
5) When light travel from rarer to denser medium the wavelength
a) increase
b) equal
c) unchanged d)Decrease
Ans-option (d)
6) The correct relationship between refractive index and speed of light is
a) u=c/v b) u = v/c
c) u=v×c d) u=v+c
Ans- option (a)
7) The speed of light in water is 2.25 ×10^8 m/s then refractive index of water is
a) 2.32 b)1.03
c)1.33 d)2.33
Ans-option (c)
u=speed of light in air/speed of light in water
=3×10^8/2.25×10^8
=3/2.25=1.33
8) The refractive indices of kerosene oil, water and turpentine oil are 1.44, 1.33, 1.47 respectively. In which of these material light travel faster?
a) Kerosene oil
b) Turpentine oil
c) water
d) Equal in all
Ans-Option (c)
9) Refractive index of medium decreases with a) increase in wavelength
b) decrease in wavelength
c) decrease in temperature
d)Both (a) & (c)
Ans-option (a)
10) when angle of incidence in more than
a) lateral displacement is less
b) lateral displacement is more
c) lateral displacement is equal
d) when lateral displacement is zero
Ans-option (b)
11) which of following colour has lateral displacement more
a) Red b) blue
c) green d) violet
Ans-option (d)
12) when angle of incidence and angle of emergence is equal, then angle of deviation is
a) minimum b)maximum c) zero d) equal
Ans-option(a)
13) the angle of deviation does not depend on
a) angle of incidence
b) angle of prism
c) size of prism
d) colour of light
Ans- option (c)
14)A coin dipped in water seem raised because of a) scattering of light
b) internal reflection
c) Refraction of light
d) diffraction of light
Ans-option (c)
15) when angle of incidence is equal to critical angle then angle of refraction become
a) 90° b) 0°
c)45° d)180°
Ans- option (a)
16) The diamond has maximum refractive index then it’s critical angle will be
a) lowest b)highest
c) zero d) equal
Ans-option (a)
17) If temperature of medium increase then critical angle
a) decrease b) increase c) zero d) Both (a) & (b)
Ans-option (b)
18) In total internal reflection
a) angle of incidence is less than the critical angle
b) angle of incidence is not equal to critical angle
c) angle of incidence is equal to critical angle
d) angle of incidence is greater than the critical angle
Ans-option (d)
19) Mirage in desert and on road .which of following physical phenomenon are responsible for this.
a) Internal reflection
b) Refraction
c) Reflection
d) deviation.
Ans-option(a)
20) which ray is less deviated by prism
a) yellow ray
b)red ray
c) Violet ray
d) Green ray
Ans-option (b)
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