Question

What is the frequency of UV light that has an energy of 2.39 × 10 -18 J?

Answer 1

Answer:

3.606×10^15............

Answer 2

Frequency of given UV light calculated as         $3.606$×$10^{15}$ Hertz

Explanation:

Given :-

Planck 's constant (h) =$6.626$×$10^{-34}$Js

The Energy of given light E is $2.39$×$10^{-18}$

We know that $E = hv$

• To determine the frequency of the UV light Frequency $v=E/h$

• frequency $6.626$ ×$10^{-34}$ and E=$2.39$ ×$10^{-18}$

• frequency= $2.39$×$10^{-18}$J/$6.626$×$10^{-34}$Js

Frequency of given UV light calculated as $3.606$×$10^{15}$ Hertz

• The relation of frequency and energy of light is very simple.

• Hertz is the unit of frequency.