Physics - Modern Physics Question with Solution | TestHub

$\gamma$-rays have shorter wavelength than X-rays

$\gamma$-rays are extraterrestrial, X-rays are man-made

$\gamma$-rays have less penetrating power than X-rays

$\gamma$-rays have greater ionising powers than X-rays

$\gamma$-rays originate from within an atomic nucleus, X-rays from outside an atomic nucleus.