Question

How many Joules of energy are there in one photon of orange light whose wavelength is 630nm?

Answer 1

The energy are there in one photon of orange light whose wavelength is 630nm is  $3.15401\times10^{-19}$ Joules.

W=c/v, c=speed of light, v=frequency

$6.3 \times 10^-7=3 \times 10^8/v$

$v=3 \times 10^8 / 6.3 \times 10^-7$

$v=4.76 X 10^14 Hz$-frequency of the yellow light.

E=hv, h=Planck's constant,

$E=(4.76 \times 10^14)Hz \times 6.62607×10^-34 J s$

$E=3.15401\times10^{-19}$ Joules- the energy of a single photon of yellow light.

What is Planck's constant?

Planck's constant or Planck's constant, is a fundamental physical constant of quantum mechanics. The constant gives the ratio of the energy of the photon to its frequency, and for mass-energy equivalent, the ratio of mass to frequency.

In quantum mechanics, energy is exchanged and absorbed in certain amounts called quanta. The Planck constant is a number that defines the amount of energy in these quantities and expresses how small things can be. Learn more about Planck's constant in this infographic.

To learn more about Planck's constant, refer;

https://brainly.com/question/10700482

#SPJ10