4. Calculate the wavelength of radiation with a frequency of 8.0 x 104 Hz.

The wavelength of wave is 0.375 * 10⁴ m.

Explanation:

Given dа ta:

Wavelength of x-ray = ?

frequency of x-ray = 8*10⁴ Hz

Solution:

speed = Wavelength * frequency

Wavelength = speed / frequency

c = 3 * 10⁸ m/s

λ = c / f

λ = 3 * 10⁸ m/s / 8*10⁴ s⁻¹

λ = 0.375 * 10⁴ m

The wavelength of wave is 0.375 * 10⁴ m.