Question

The ratio of frequency is two mechanical wave in a medium is 5: 7 find ratio of their first wavelength second time period

Answer 1

λ = v / f

In a medium both will travel with same velocity

So,

Ratio of wavelength = 1 / Ratio of Frequency

= 1 / (3 : 4)

= 4 : 3

Time period = 1 / Frequency

Ratio of time period = 1 / Ratio of Frequency

= 1 / (3 : 4)

= 4 : 3