Light passes from crown glass ( ) into a liquid

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

Light passes from crown glass (

n=1.50

) into a liquid. If the angle of incidence inside the glass is

30^{\circ}

and the angle of refraction in the liquid is

40^{\circ}

, the refractive index of the liquid is (a)

1.70

(b)

1.13

(c)

1.17

(d)

1.28