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Q10.17 (d) Answer the following questions:
Two students are separated by a 7 m partition wall in a room 10 m high. If both light and sound waves can bend around obstacles, how is it that the students are unable to see each other even though they can converse easily.
Answers (1)
The size of obstacle should be comparable to the wavelength for diffraction of waves by obstacles, through a large scale.
This comes from
This implies
It means the light goes almost unbent, and hence students are unable to see each other.
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