Fundamentholfundamenthol
JEE Main2019Physics
Q.

Radiation coming from transitions n = 2 to n = 1 of hydrogen atoms fall on He+ions in n = 1 and n = 2 states. The possible transition of helium ions as they absorb energy from the radiation is 

  1. A

    n = 2 n = 4

  2. B

    n = 2 n = 5

  3. C

    n = 2 n = 3

  4. D

    n = 1 n = 4

Solution

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