In Hydrogen atom, energy of first excited state is – 3.4 eV. Then find out KE of same orbit of Hydrogen atom.
+ 3.4 eV
+ 6.8 eV
– 13.6 eV
+ 13.6 eV
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The velocities of two particles A and B are 0.05 and 0.02 ms–1 respectively.The mass of B is five times the mass of A. The ratio of their de-Broglie's wavelength is