Teaching NVS PGT 2024 Test Series Physics Atoms De Broglie’s Explanation of Bohr’s Second Postulate of Quantisation
An electron with speed v and a photon with speed c have the same de-Broglie wavelength. If the kinetic energy and momentum of the electron are Ee and Pe and that of photon are Eph and Pph respectively. Consider the mass of electron and hole to be the same. Which of the following is correct?
1
\(\frac{E_e}{E_{ph}}=\frac{2c}{v}\)
2
\(\frac{E_e}{E_{ph}} = \frac{1}{2}(\frac{v}{c})^2\)
3
\(\frac{P_e}{P_{ph}}=\frac{2c}{v}\)
4
\(\frac{P_e}{P_{ph}}=\frac{v}{2c}\)