Question

If a wave frequency doubled and its speed stays constant,its wavelength is

Answer 1

Let initial frequency be 1
Initial wavelength be 1
Therefore, velocity=1

New frequency = 2*1 =2
but velocity has to remain 1 so wavelength , for this purpose, has to become 0.5
Therefore wavelength will decrease by 50%

Answer 2

wave length= v/n

frequency ko dubles kar dene pe wave length Dubles ho gaa