Question

What is the energy of a photon with a 6 micrometer wavelength (1 m = 10^6micrometers)?

O 3 x 10-34 )
O 3 x 10-32
O 3 x 10-20 ]
O 3 x 10-20 j

Answer 1

The energy of a photon : 3 x 10⁺²⁰

Further explanation

Radiation energy is absorbed by photons

The energy in one photon can be formulated as

`\large{\boxed{\bold{E\:=\:h\:.\:f}}}`

Where

h = Planck's constant (6,626.10⁻³⁴ Js)

f = Frequency of electromagnetic waves

f = c / λ

c = speed of light

= 3.10⁸

λ = wavelength

Wavelength of photon=λ=6 μm = 6.10⁻⁶ m

`\tt E=h* (c)/(\lambda)\\\\E=6,626.10^(-34)* (3.10^8)/(6.10^(-6))\\\\E=3.3* 10^(-20)~J`