Question

The energy of X-rays photon is $3.3\times 10^{-16}J$. Its frequency is :

• A. $2\times 10^{19}Hz$
• B. $5\times 10^{18}Hz$
• C. $5\times 10^{17}Hz$
• D. $5\times 10^{16}HZ$

Answer 1

Answer: (C)

$E=hv$
$V=Elh=5\times 10^{17}Hz$