First slide

Standing waves

Question

The equation y = 0.15 sin 5x cos 300 t represents a stationary wave. The wavelength of this stationary wave will be

Easy

A

zero
B

1.256 units
C

2.512 units
D

0.628 units

Solution

$5 = \frac{2 π}{λ} \Rightarrow λ = \frac{2 π}{5}$

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