A sinusoidal progressive wave travelling in air has wavelength

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

0.80\,\text{m}

. What is the corresponding angular wave number

k

? (a)

2.5\,\text{rad m}^{-1}

(b)

3.9\,\text{rad m}^{-1}

(c)

7.9\,\text{rad m}^{-1}

(d)

1.25\,\text{rad m}^{-1}