Q1.
An angle of incidence of 20° in water results in an angle of refraction of
15° in another medium X. It implies:
(a) medium X is rarer than water.
(b) optical density of both the medium is same.
(c) medium X will sink in water.
(d) Speed of light decreases in medium X.
Q2.
Light travels from glass to air. If the angle of incidence is 30°, What could be the possible value of angle of refraction?
(a) 30°
(b) 0°
(c) 48°
(d) 15°
Q3.
State Snell’s law.
Q4.
Express Snell’s law in mathematical form. Write the meaning of the symbol used.
Q5.
State the two laws of refraction of light.
