# Question #33e1f

##### 1 Answer

Mar 1, 2016

#### Answer:

We need to use:

Speed of light = frequency x wavelength

hence

Frequency = speed of light / wavelength

And

Wavelength = speed of light / frequency

#### Explanation:

The speed of light is

So question (a) is

This in the ultraviolet part of the spectrum

And for (b)

This is in the microwave part of the spectrum

For (c) we can work out distance by multiplying speed by time taken