Question

Give any two applications of X-rays.

Answer 1

$X-rays$ are used
$\to$ as a diagnostic tool in medicine to detect fracture of bones, foreign bodies like bullets and stones in body.
$\to$ in the treatment of certain cancer.
$\to$ for detecting faults, cracks and flaws in metal casting
$\to$ in the investigation of structure of crystals
$\to$ to cause photoelectric effect.