Question

Two waves of frequency n and 2n move with equal speed. The ratio of their wavelength is :​

Answer 1

Answer:

wavelength of n frequency=v/n

wavelength of 2n frequency=v/2n

ratio=v/n/v/2n

=2:1

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Answer 2

Answer:

v=n•lamda

1st wave,

wavelength=l1

2nd wave,

wavelength=l2

l1:l2

v/n:v/2n

2:1