Question

What is the wavelength of a 1.28 x 10^17 Hz wave?

Answer 1

Answer:

The wavelength of the wave is 2.34 nm.

Explanation:

It is required to find the wavelength of a $1.28\times 10^{17}\ Hz$ wave. A wave moves with a speed of light. Speed of a wave is given in terms of wavelength and frequency. So,

$v=f\lambda$

$\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{1.28\times 10^{17}}\\\\\lambda=2.34\times 10^{-9}\ m\\\\\text{or}\\\\\lambda=2.34\ nm$

So, the wavelength of the wave is 2.34 nm.