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34 votes
1)Pitch is measure of the ____________ of sound.

(a) amplitude (b) wavelength (c) time period (d) frequency

2)A book placed on a shelf can be seen from any part of that room due to _________.

(a) regular reflection

(b) clear reflection

(c) diffused reflection

(d) parallel reflection

3)Two mirrors A and B are placed at right angles to each other. A ray of light incident

on mirror A at an angle of 25° falls on mirror B after reflection. The angle of reflection

for the ray reflected from mirror B would be



User Timu
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3.1k points

1 Answer

17 votes
17 votes

Answer:

1) wave length

2) parallel reflection

User Blase
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3.3k points