Question

What is the wavelength of a microwave that has a frequency of 4.2 x 10^8 Hz

Answer 1

0.714 m (app.)

Step-by-step explanation:

use ∧ = c/f

here, ∧ = wavelength

c = velocity of light = 3 × 10^8 m/s

f = frequency = 4.2 × 10^8 Hz