# What is the frequency of an electromagnetic wave that has a wavelength of 3.7 times 10^-11 m in a vacuum?

May 25, 2017

Well, $c = \nu \times \lambda$

#### Explanation:

This question could have been asked in the physics section, mind you chemists regularly work with wave phenomena.

We want $\nu = \left(c \left(\text{the speed of light"))/(lambda("wavelength}\right)\right)$

And so we plug in the numbers to the given quotient:

$\frac{3 \times {10}^{8} \cdot m \cdot {s}^{-} 1}{3.7 \times {10}^{-} 11 \cdot m} = 8.11 \times {10}^{18} \cdot {s}^{-} 1$.

This frequency is in X-ray region............