A light source of wavelength illuminates a metal surface and electron are ejected with the maximum kinetic energy 2 eV. If the same surface is illuminated by a light source of wavelength
, then calculate the maximum kinetic energy of the ejected electron. (Work function of metal is 1 eV)
The photoelectric equation is [ K_{\text{max}} = h\nu - \phi ] where (K_{\text{max}}) is the maximum kinetic energy, (h\nu) is the photon energy, and (\phi) is ____ ___ _____ ________ __________.
_____ ________ ________ ________ ________ _________.
_______ _________ ________ ________ ___ ____ _____ ____ __________.
_______ ___ _______ _____ _________ ______.
________ _________ _________ ___ ________ ______ ____ _______.
______ ___ ____ ___ _________ ________ ______ ___ ______ __________ ___ ________.
______ ________ _________ _____ ______ ________ __________ ___.
____ _______ ___ _______ _______ ___ _________ __________ ______ __________.
_____ ___ ________ ____ _______ ____ __________ ________.
______ ________ _________ _________ ______ _________ _______ ______ _______ ________ ____ __________.
_______ ____ ___ ____ ____ __________ _____ ______.
______ ____ ____ _____ ___.
______ _____ ____ ____ ________.
____ ___ ________ ____ ________ _________ ____ ________ ____.
___ _______ ______ _____ __________ _________ _______ ________ _______ ___.
___ _______ ______ ___ _________ _______ _____ ____ ______ ____.
_________.
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What is meant by polarizability of a molecule?
Raman rotational spectra of was observed with Hg light with Rayleigh line at
. Stokes lines were observed at
. Draw the rotational energy level diagram with Stokes and anti Stokes lines.
Explain why the atomic spectra are line spectra whereas the molecular spectra are band spectra.
What is meant by the Balmer series of hydrogen? What will be the wave number of the longest wavelength in the Balmer series?
The frequencies of the first and second overtones respectively are exactly double and triple of the fundamental vibration frequency. Comment.
The lifetime of (excited state) is
. If the excited state is
above the ground state determine the linewidth
and ratio
.
Explain why the spin splitting is not observed in
spectrum?