Question

Give the relation of energy (E) and frequency (v) as given by Planck. Calculate the frequency and energy of a photon of radiation having wavelength 3000°A.

Pls answer correctly,need it urgently...

Answer 1

Solution:-1

`\\ \sf\longmapsto E=hv`

• E denotes to Energy
• h denotes to planks constant
• v denotes to frequency.

Solution:-2

• Wavelength=3000Å

`\boxed{\sf \lambda=(c)/(v)}`

`\\ \sf\longmapsto v=(c)/(\lambda)`

`\\ \sf\longmapsto v=(3* 10^8m/s)/(3000* 10^(-10)m)`

`\\ \sf\longmapsto v=0.001* 10^(18)s^(-1)`

`\\ \sf\longmapsto v=1.0* 10^(15)s^(-1)`

Now

`\\ \sf\longmapsto E=hv`

`\\ \sf\longmapsto E=6.626* 10^(-34)Js* 1.0* 10^(15)s^(-1)`

`\\ \sf\longmapsto E=6.6* 10^(-19)J`