Question
Write a short note on $X-$rays.

Answer

$\rightarrow$ The region of electro magnetic spectrum beyond the $UV$ region is called $X-$ray region.
$\rightarrow$ Range of wave length: $10^{-8}m(10 nm)$ to $10^{13}m (10^{-4}nm).$
$\rightarrow X-$rays can be generated by bombarding a metal target by high energy electrons.
$\rightarrow X-$rays are used as a diagnostic tool in medicine and as a treatment for certain forms of cancer.
$\rightarrow$ Because $X-$rays damage $($or destroy$)$ living tissues and organisms, care must be taken to avoid unnecessary or over exposure.

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