How do light bend?
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Posted by Utsa? Barai 5 years, 6 months ago
- 3 answers
Vinayak Agrawal 5 years, 6 months ago
Yogita Ingle 5 years, 6 months ago
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.
The amount of bending depends on two things:
- Change in speed – if a substance causes the light to speed up or slow down more, it will refract (bend) more.
- Angle of the incident ray – if the light is entering the substance at a greater angle, the amount of refraction will also be more noticeable. On the other hand, if the light is entering the new substance from straight on (at 90° to the surface), the light will still slow down, but it won’t change direction at all.
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Raju Patrut 5 years, 6 months ago
0Thank You