Question

4. A longitudinal wave travels at a speed of 0.3 ms and
the frequency of wave is 20 Hz. Find the separation
between the two consecutive compressions.​

Answer 1

Explanation:

ANSWER

wave velocity=0.3m/sec=0.3m/sec

frequency=20Hz=20Hz

as we know

wave velocity\\ \\ \\ \\ \\ \\ =frequency\times wavelength\\ \therefore \lambda =\cfrac { v }{ f } \\ =\cfrac { 0.3 }{ 20 } =1.5\times { 10 }^{ -2 }m

=frequency×wavelength

∴λ=

f

v

=

20

0.3

=1.5×10

−2

m.

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