Question

calculate the energy of photon adding wavelength of 480 NM in joule​

Answer 1

Explanation:

The energy of the photon is 3.97 × 10⁻²¹ J.

You have two useful formulas.

E=hf, where h is Planck's constant, and f is the frequency of the photon.

The other formula is

fλ=c, where λ is the wavelength of the photon and cis the speed of light.

Since f=cλ, we can write

E=hcλ=6.626×10⁻³⁴J⋅s×2.998×10⁸m⋅s⁻¹5.00×10⁴×10⁻⁹m=3.97×10⁻²¹J