Question

write two properties of photon.which photon is more energetic. red or violet why​

Answer 1

Solution : Since frequency of violet light is more than that of red light, i.e., vviolet>vred and energy of a photon = hv. So photon of violet light is more energetic than that of red light.

Answer 2

The two properties of photons are:

• The rest mass of a photon is zero.
• The energy (E) of a photon is E = hv = hc/λ,

where h = Planck's constant, λ= wavelength, c = speed of light and v= frequency of the photon.

Violet coloured photon is more energetic.

As we stated above that Energy of a photon E = hv

The frequency of violet coloured photon is more as compared to the red coloured photon as red coloured photon has greater wavelength, while h (plank's constant) is the same for both of them, hence violet coloured photon will have more energy. Therefore the violet coloured photon is more energetic as compared to the red coloured photon.