Write true of false for the following statements: Sound produced by a

1.	Write true of false for the following statements: Sound produced by a sounding body of frequency 300 Hz covers 34 m in the time the sounding body produces 30 vibrations.
Answer» True Explanation: Given, Frequency(f) = 300 Hz No. of vibration = 30 Distance travelled by sound = 34 m frequency(f) = \(\frac{1}{Time\,period(T)}\) ⇒ T = \(\frac{1}{f}\) ⇒ T = \(\frac{1}{300}\) = 0.0033 sec After 30 vibrations, Total time taken = No. of vib.×Time period Total time taken = 30 × \(\frac{1}{300}\) = 0.1 s Distance travelled = speed × time Distance = 340×0.1 = 34 m

Write true of false for the following statements: Sound produced by a sounding body of frequency 300 Hz covers 34 m in the time the sounding body produces 30 vibrations.

Answer»

True

Explanation:

Given,

Frequency(f) = 300 Hz

No. of vibration = 30

Distance travelled by sound = 34 m

frequency(f) = \(\frac{1}{Time\,period(T)}\)

⇒ T = \(\frac{1}{f}\)

⇒ T = \(\frac{1}{300}\) = 0.0033 sec

After 30 vibrations,

Total time taken = No. of vib.×Time period

Total time taken = 30 × \(\frac{1}{300}\) = 0.1 s

Distance travelled = speed × time

Distance = 340×0.1 = 34 m

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Write true of false for the following statements: Sound produced by a sounding body of frequency 300 Hz covers 34 m in the time the sounding body produces 30 vibrations.

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