Please solve 17 is 2,36X 10
If the wave length Of a photon is 4000A then What Will
Ans- 4-95 x 10—19 joule.
IS. Calculate the momentum of a photon of light ray of wave length
if planck•s constant h = 66 x joule x sec.
Ans. 132 x 10-29 joule sec rn-l.
16. cwt the energy of a photon of light of wavelength «.)OOA
Ans. 3•31 x 10-19 joule.
17. If voltage across the anode and the cathode Of a CRO is 500 volt.
then calculate the energy of the electron and also calculate its velocity
if it starts from rest.
Ans. 8 x 10-1 ' joule; and 1•33 x m/sec.