Calculate the wavelengths of microwaves that has a frequency of 1.5 x 10^15Hz:

200 nm

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)