Question

7 Which sound has a higher frequency Sound A (represented by the purple sine wave below) or Sound B (represented by the green sine wave)?
Amplitude
Sound A
Sound B
MAANAN
w
Time
ol026
1
-2
O A Sound A has a higher frequency
O B Sound B has a higher frequency
O O Sounds A and B have the same frequency
O D. Not enough information is given

Answer 1

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Answer 2

Sound B  which is represented by green sine wave will has higher frequency.

What do you understand by frequency?

Number of oscillation completed by a wave in one second, is called frequency. In the given graph two waves are shown , one in purple sine wave and other is green.

Calculation of frequency

The green wave completes 11 oscillations in 0.025 sec while purple takes little bit less time.

Thus the frequency of green is higher than purple. So the frequency of green will be,

$n = [{time taken} ][{number of oscillations}]\\n = (0.025)(11)\\n = 0.00227 Hz$

Hence the frequency of green sine wave is 0.00227 Hz and purple has less than this, so the frequency of green is higher than purple sine wave.

To know more about frequency

https://brainly.com/question/5102661

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