Question

What is the frequency of a wave having 4.90 x 10 -12 J of energy?

Answer 1

The answer is

`\huge 7.40 * {10}^(21) Hz`

Step-by-step explanation:

To find the frequency of the wave we use the formula

`f = (E)/(h) \\`

where

E is the energy

f is the frequency

h is the Planck's constant which is

6.626 × 10-³⁴ Js

From the question

E = 4.90 × 10-¹² J

So we have

`f = \frac{4.90 * {10}^( - 12) }{6.626 * {10}^( - 34) } \\`

We have the final answer as

`7.40 * {10}^(21) \: \: Hz`

Hope this helps you