Question

what is the wavelength of radio waves transmitted by an FM station at 90MHz where 1M=10^6, and speed of radiowave is 3*10^8m/s

Answer 1

λ = 3.33 m

Step-by-step explanation:

Given:

Frequency = f = 9 × 10⁷ Hz

Speed = v = 3 × 10⁸ m/s

Required:

Wavelength = λ = ?

Formula:

v = fλ

Solution:

Putting the givens in the formula

v = fλ

λ =
`(v)/(f)`

λ =
`(3*10^8)/(9*10^7)`

λ = 0.33 × 10¹

λ = 3.33 m