An insect “A” vibrates its wings 25,000 times in 100 seconds while another insect “B”
vibrates its wings 500 times in 100 seconds.
a) Calculate the frequencies of vibration of insects A and B.
b) Which among these two frequencies of sound is not audible to human ears? Justify your
answer.
Answers
Answered by
1
Answer:
td8tdtid8t8d8td8tdtxitditxutxutx
Explanation:
Txitcitd8yf8yfyofiyoftf it was just so much fun with it is not going to my channel is a new job and subscribe 6
Answered by
0
Answer:
Sorry but I only know the second one
Explanation:
Correct option is
B
0.002
Frequency equals the number of waves that passes a given point per second or the number of oscillations of a vibrating body per second or number of cycles per second.
In this case, a mosquito vibrates its wings at an average rate of 500 vibrations per second. Therefore, the frequency of the sound is 500 Hz.
Time period of the wave is defined as the reciprocal of the frequency of the wave.
That is, T=
f
1
=
500
1
=0.002second.
Hence, time period of the sound produced by the mosquito is 0.002 second.
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