Question

The wavelength of $X$- rays is the order of
(A) $1\,cm$
(B) ${10^2}\,cm$
(C) ${10^{ - 4}}\,cm$
(D) ${10^{ - 8}}\,cm$

Answer 1

Hint Here we know the wavelength concept and in addition to that the electromagnetic spectrum knowledge for the X-ray wavelength study, so we can draw the diagram for our understanding of the speed of light concept. Also find the wavelength of the X-rays.
Useful formula:
Electro spectrum formula,
$\lambda v = c$
Where,
$\lambda$ is wavelength,
$v$ is frequency
$c$ is seed of the light

Complete step by step answer
Given by,
The Wavelength of $X$ rays,
Electromagnetic spectrum:
The electromagnetic spectrum is the distribution, by energy, of electromagnetic radiation or equivalently, by frequency or wavelength, by virtue of the relations in the previous section.
The notation 'eV' stands for electron-volts, a standard atomic physics unit of measurement of energy. The figure below shows a graphical representation of the electromagnetic spectrum.

$X$ rays:
As a source of electromagnetic radiation, we can describe $X$-Rays or $X$-radiation. They are solid electromagnetic energy waves. Most of them have a wavelength ranging from 0.01 to 10 nanometers, corresponding to $30{\text{ }}petahertz$ to $30{\text{ }}exahertz$ frequencies and $100{\text{ }}eV$ to $100{\text{ }}keV$energy levels.
Red has the longest wavelength, and the shortest wavelength is violet. They produce white light when all the waves are seen together. Ultraviolet (UV) light is radiation within the range of 10 nm to 400 with a wavelength shorter than that of visible light, but longer than $X$-rays.
Hence,

Thus, the option D is correct answer

Note According to that the high-speed electrons collide with the metal plates, they are created, giving the energy and being absorbed by the metal plate. The beam passes through the air and comes into contact with the tissues of the body and generates an image on a metal film. The radiation is absorbed by dense materials within our bodies, including bones.