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Alla [95]
3 years ago
5

The reflection of a sound wave from a wal is called

Physics
2 answers:
WINSTONCH [101]3 years ago
4 0
I think its an echo?
mestny [16]3 years ago
4 0

Answer:

The reflection of a sound wave from a wall is called <u>echo.</u>

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Consider a variety of colors of visible light (say 400 nm to 700 nm) falling onto a pair of slits.
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Answer:

Explanation:

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where \lambda =wavelength

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for second order maxima i.e. m=2

For smallest separation taking \lambda =400 nm, \theta =90^{\circ}

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6 0
3 years ago
75 pts!
jasenka [17]

again CORRECT ans is 4) light strikes the grooves → different wavelengths of light bend at different angles → diffracted wavelengths reach the eyes → the eyes see different colors.

moderator - plz review the ans as u deleted my right ans n approved the wrong ans :(

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