$X$-rays are:

$X$-rays are produced due to which of the following?

For the structural analysis of crystals, $X-$ rays are used because

$A$ direct $X-$ray photograph of the intestines is not generally taken by radiologists because

If $X$-rays pass through a strong magnetic field,the $X$-rays . . . . . .

When $0.50\; \mathring{A}$ $X$-rays strike a material,the photoelectrons from the $K$-shell are observed to move in a circle of radius $23\; mm$ in a magnetic field of $2 \times 10^{-2}\; T$ acting perpendicularly to the direction of emission of photoelectrons. The binding energy of $K$-shell electrons is $..........\; keV$.