Answer:
200 nm
Step-by-step explanation:
Microwaves are Electromagnetic waves.
Electromagnetic waves are waves that are created as a result of vibrations between an electric field and a magnetic field.
EM waves travel at the speed of light
( that is always 3 x 10⁸ ms⁻¹ in a vacuum.)
By the definition of the velocity of waves
V = fλ
- where ,
- V - Velocity
- f - frequency
- λ - wavelength
V = fλ
3 * 10⁸ ms¹ = 1.5 * 10¹⁵ Hz * λ
λ = 2 * 10⁻⁷ m = 200 *10 ⁻⁹ m
= 200 nm
(1 nm = 1 *10 ⁻⁹ m )