Question

Calculate the kinetic energy of the ejected electron when ultra-violet radiation of frequenc $1.6 \times 10^{15}$ $s^{-1}$ strikes the surface of potassium metal. Threshold frequency of potassium is $5 \times 10^{14}$ $s^{-1}$. ( $h = 6.63 \times 10^{-34}$ Js)

Answer 1

Hello mate!!

Ur answer is option no . C

Answer 2

Explanation:

Hi......

how are you????????

C option is correct