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