Question on: JAMB Physics - 2024
A light ray passing from air into water at an angle of 30º from the normal in air would
A
make an angle greater than 30\(^0\) in water surface
B
be completely absorbed by the water surface
C
be completely reflected by the water surface
D
make an angle less than 30\(^0\) from the normal in water
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Correct Option: D
When a light ray passes from a less dense medium (air) to a denser medium (water), it bends towards the normal. This bending is called refraction. The angle of refraction (in water) will be less than the angle of incidence (in air) because the speed of light decreases in water.
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