Question

The frequency of X- rays, $\gamma -$ rays and UV rays are respectively a,b and c. Then

• A. a < b ; b < c
• B. a> b ; b < c
• C. a < b ; b > c
• D. a > b ; b > c

Answer 1

The correct option is C a < b ; b > c

The frequency of X-ray and $\gamma$-rays and UV are following:
$a={10}^{17}to{10}^{19}Hz,b={10}^{20}to{10}^{21}Hzandc={10}^{16}Hz$.
So, c < a < b.