Answer:
208 m/s
Step-by-step explanation:
Given,
frequency =400Hz
wavelength =52cm
we need to convert cm to m
52 cm/100cm {1m=100cm}
=0.52m
wkt,
wavelength =speed of wave/frequency
to find speed of wave
speed of wave=frequency × wavelength
=400 × 0.52
=208 m/s