SATHEE: Atoms - Result Question 44

Atoms - Result Question 44

46. The ground state energy of $H$ -atom $13.6 e V$ . The energy needed to ionize $H$ -atom from its second excited state.

[1991]

(a) $1.51 e V$

(b) $3.4 e V$

(d) $12.1 e V$

Show Answer

Answer:

Correct Answer: 46. (a)

Solution:

(a) Second excited state corresponds to $n = 3$

$∴ E = \frac{13.6}{3^{2}} e V = 1.51 e V$

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Atoms - Result Question 44

46. The ground state energy of H-atom 13.6eV. The energy needed to ionize H-atom from its second excited state.

Answer:

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46. The ground state energy of $H$ -atom $13.6 e V$ . The energy needed to ionize $H$ -atom from its second excited state.