Teaching EMRS PGT Mock Test 2023 Physics Atoms De Broglie’s Explanation of Bohr’s Second Postulate of Quantisation
If the de-Broglie wavelengths for a proton and for an α – particle are equal, then the ratio of their velocities will be
1
4 : 1
2
2 : 1
3
1 : 2
4
1 : 3