Question

when light enters into water from air, what change is observed in its speed?​

Answer 1

Answer:

refraction

When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction is called refraction. When light enters a more dense substance (higher refractive index), it 'bends' more towards the normal line.

Answer 2

Explanation:

when light travels from air into water it slows down causing it to changes direction slightly the change of direction is called refraction .when light enters a more dense substance it bends down more towards the normal line .

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