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polet [3.4K]
3 years ago
15

What do we measure sound intensity in?

Physics
2 answers:
lys-0071 [83]3 years ago
6 0

Answer:

<h2>Decibels</h2>

Explanation:

We measure  sound power or sound pressure in decibels.

They  were named in honour of Alexander Graham Bell,( the inventor of both the telephone and the audiometer).

stira [4]3 years ago
3 0

Answer:

we measure sound intensity in <em><u>D</u></em><em><u>ecibels</u></em>.

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For what angle of incidence at the first mirror will this ray strike the midpoint of the second mirror (which is 28.0 cmcm long)
loris [4]

This question is incomplete, the complete question is;

Two plane mirrors intersect at right angles. A laser beam strikes the first of them at a point 11.5 cm from their point of intersection, as shown in the figure.

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so angle of incidence = 90° - ∅

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