Question text
23 Light passes from air into a glass block of refractive index 1.5, as shown. glass block NOT TO SCALE 57° normal What is the angle of refraction in the glass and what is the critical angle? angle of refraction critical angle A 34° 42° B 34° 60° C 38° 42° D 38° 60°
23 Light passes from air into a glass block of refractive index 1.5, as shown.
glass block
NOT TO
SCALE
57°
normal
What is the angle of refraction in the glass and what is the critical angle?
angle of refraction critical angle
A 34° 42°
B 34° 60°
C 38° 42°
D 38° 60°
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