Question

The wavelength of a sine wave is lambda = 1m. Calculate the wave number ​

Answer 1

Answer:

6.28 radm^-1

Explanation:

wavelength =1 m

WAVE NUMBER, k = 2π/WAVELENGTH

k=2*3.14/1

k=6.28 radm^-1

Answer 2

The wave number of the wave is $2\pi$

Explanation:

It is given that,

Wavelength of a sine wave, $\lambda=1\ m$

We know that the equation of a sine wave is given by :

$y=A\ sin(kx)$

Where

k is the wave number

We know that the relation between the wavelength and the wave number is given by :

$k=\dfrac{2\pi}{\lambda}$

$k=\dfrac{2\pi}{1}$

$k=2\pi$

So, the wave number of the wave is $2\pi$. Hence, this is the required solution.

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