The wavelength of a photon is 1.4 Å. It collides with an electron. The energy of the scattered electron is `4.26xx10^(-16)` J. Find the wavelength of photon after collision.

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.

The wavelength of a photon is 1.4Å. It collides with an electron. Its wavelength after collision is 4Å. Calculate the energy of scattered electron. h=6.62xx10^(-34)Js

The ratio of wavelength of a photon and that of an electron of same energy E will be

The ratio of wavelength of a photon and that of an electron of same energy E will be

The energy of a photon is 10 xx 10^-19J .Calculate its wavelength.

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.