Question

A microwave can have a frequency of 3.8 X 1010Hz. How much energy does this microwave give off in joules?

Answer 1

2.52 x
`10^(-23)` J

Step-by-step explanation:

The energy given off by the microwave can be determined by the application of Planck's energy formula:

E = hf

where: E is the required energy, h is Planck's constant (6.626 x
`10^(-34)`
`m^(2)`Kg/s), and f is the frequency (3.8 x
`10^(10)` Hz).

So that;

E = 6.626 x
`10^(-34)` x 3.8 x
`10^(10)`

= 2.51788 x
`10^(-23)`

Therefore, the energy released by the wave is 2.52 x
`10^(-23)` J.