Question

A wave equation is given by y = 4 sin X t - + 9 5 6 where, x is in cm and t

is in second. The wave number of the wave is

-1 1) rad cm

-1 3) rad cm-¹ 5

1 ст 2)=rad cm 6 -1

4) 2π 9 rad​

Answer 1

Explanation:

Correct option is

D

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