JEE Main & Advanced Physics Atomic Physics Question Bank Topic Test - Atomic Physics

The energy of hydrogen atom in its ground state is - 13.6 eV. The energy of the level corresponding to the quantum number n is equal 5 is

A) - 5.40 eV

B) - 2.72 eV

C) - 0.85 eV

D) - 0.54 eV

Correct Answer: D

Solution :

[d] \[A={{A}_{0}}{{\left( \frac{1}{2} \right)}^{\frac{t}{{{T}_{1/2}}}}}\Rightarrow \frac{1}{64}={{\left( \frac{1}{2} \right)}^{\frac{60}{{{T}_{1/2}}}}}\] \[\Rightarrow \]\[{{E}_{5}}=\frac{-13.6}{{{5}^{2}}}=\frac{-13.6}{25}=-0.54\ eV\]

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JEE Main & Advanced Physics Atomic Physics Question Bank Topic Test - Atomic Physics

question_answer The energy of hydrogen atom in its ground state is - 13.6 eV. The energy of the level corresponding to the quantum number n is equal 5 is A) - 5.40 eV B) - 2.72 eV C) - 0.85 eV D) - 0.54 eV

The energy of hydrogen atom in its ground state is - 13.6 eV. The energy of the level corresponding to the quantum number n is equal 5 is

A) - 5.40 eV

B) - 2.72 eV

C) - 0.85 eV

D) - 0.54 eV