The minimum wavelength of photon is `5000 Å` , its energy will be

The wave length of a photon is 5000 Å. Calculate its energy in electron volts.

The wavelength of light is 5000 Å , express it in m .

The wavelength of light is 5000 Å , express it in nm .

The wavelength of a photon is 1.4 Å . It collides with an electron. Its wavelength after collision is 2.0 Å . Calculate the energy of the scattered electron.

If wavelength of radiation is 4000Å=400nm then the energy of the photon is

A photon of wavelength 3310Å falls on a photocathode and an electron of energy 3xx10^(-19)J is ejected. If the wavelength of the incident photon is changed to 5000Å, the energy of the ejected electron is 9.72xx10^(-20)J . Calculate the value of Planck's constant and threhold wavelength of the photon.

The wavelength of the photons are 4500 Å and 6000 Å. The ratio of their energies is