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CGP EDU Academic Team
Published on: August 14, 2026
S1: Bohr model is applicable for Be 2+ ion.
S2: Total energy coming out of any light source is integral multiple of energy of one photon.
S3: Number of waves present in unit length is wave number.
S4: e/m ratio in cathode ray experiment is independent of the nature of the gas.
Text Solution
Verified by ExpertsThe correct answer is:
C
Systems with a single electron can benefit from Bohr theory. It therefore applies to hydrogen or atoms that are similar to hydrogen. Atoms and ions that resemble hydrogen are those with just one electron. The like 
etc. Hence, option c is correct.
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