Aparticular am radio station broadcasts at a frequency of 1020 kilohertz. what is the wavelength of this electromagnetic radiation?
1 m
how much time is required for the radiation to propagate from the broadcasting antenna to a radio 3 km away?
2 s

Explanation:

Given that,

Frequency of the AM radio station,

(a) Let is the wavelength of this electromagnetic radiation. It can be calculated as :

Since the wavelength of one cycle is 294.12 m, then the total number of cycles over a 3 km distance is:

Let the period is the duration of one cycle is given by:

So, total time required is t as :

hotter stars = bluer stars

the force required to move the cart is divided by three or 33.33 n.