A transverse wave on a stretched string has speed and is produced by a source of frequency

PHYSICS · Subjective · CBSE · Physics · Waves · Waves

Problem

A transverse wave on a stretched string has speed

v_{1}

and is produced by a source of frequency

f_{1}

. The tension in the string is increased so that the wave speed becomes

v_{2}=1.5\,v_{1}

. At the same time, the driving frequency is reduced by

25\%

f_{2}=0.75\,f_{1}

. Find the ratio of the new wavelength to the original wavelength,

\lambda_{2}/\lambda_{1}