Answer:
The speed of the wave with a frequency 100 mhz will be

Step-by-step explanation:
We have given that frequency of light is 100 mhz
We have to find the speed of light in vaccuum
We know that all electromagnetic waves travels in vaccum wth the same speed as the speed of light
And we know that speed of light is equal to

So the speed of the wave with a frequency 100 mhz will be
