If a wave has a wavelength of 0.1 nanometer, it must be a(n)
gamma ray
microwave
radio wave
x-ray

Answer:
Option D, x-ray
Explanation:
As visible from the image provided, the wavelength of the given waves are as follows -
gamma ray - [tex]10^{-12}[/tex] meter
microwave - [tex]10^{-2}[/tex] meter
radio wave - [tex]10^{3}[/tex] meter
x-ray - [tex]10^{-10}[/tex] meter
The wavelength of the wave mentioned in the question is 0.1 nanometer which is equal to
[tex]0.1 * 10^{-9}\\= 1 * 10^{-10}\\= 10^{-10}\\[/tex] meter
This wavelength range is equal to the wavelength of the X-Ray. Hence, the correct answer is option D