Question

The equation $y=0.15$ sin $5xcos300t$ represents a stationary wave. The wavelength of this stationary wave will be -

• A. zero
• B. $1.256$ units
• C. $2.512$ units
• D. $0.628$ units

Answer 1

Answer: (B)

$5=\frac{2\pi }{\lambda }\Rightarrow \lambda =\frac{2\pi }{5}$