The energy of electron is maximum at

Assertion: In outermost stationary orbit, energy of electrons is maximum Reason: In such an orbit, electron is at minimum distance from the nucleus

In a photo-emissive cell, with exciting wavelength lambda_1 , the maximum kinetic energy of electron is K. If the exciting wavelength is changed to lambda_2 , the maximum kinetic energy of electron is 2K then

In a photo-emissive cell, with exciting wavelength lambda_1 , the maximum kinetic energy of electron is K. If the exciting wavelength is changed to lambda_2 , the maximum kinetic energy of electron is 2K then

Fermi energy is the maximum energy of an electron in the band at :

In a photo-emissive cell, with exciting wavelength lambda , the maximum kinetic energy of electron is K. If the exciting wavelength is changed to ( 3 lambda)/( 4) the kinetic energy of the fastest emitted electron will be :