Question

What is the wavelength of the radio waves broadcast by an FM radio station with a frequency of 90.5 MHz?

Answer 1

lambda= speedoflight/frequency

Memorize the wave equation

f*lambda= speedofpropogation.

Answer 2

u don't knpw

Answer 3

wavelength = speed of light divided by frequency.

So take 2.998x10^9 m/s divided by 90.5x10^6 s^-1
Remember Hz is per second. M is mega or 10^6.
Units are the key to solving this!