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(D) The energy of an orbital in a hydrogen-like atom is given by $E_n = -13.6 	imes \frac{Z^2}{n^2} 	ext{ eV}$.As the principal quantum number $n$ i

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Assertion is wrong,Reason is correct

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(D) The energy of an orbital in a hydrogen-like atom is given by $E_n = -13.6 	imes \frac{Z^2}{n^2} 	ext{ eV}$.As the principal quantum number $n$ increases,the value of $E_n$ becomes less negative,meaning the total energy of the orbital increases.Therefore,the Assertion is incorrect.The Reason states that energy is required to move a negatively charged electron away from a positively charged nucleus,which is correct because work must be done against the electrostatic force of attraction.Thus,the Assertion is wrong,but the Reason is correct.The correct option is $(D)$.

Choose the correct option regarding: Assertion: Energy of the orbital decreases with increase of $n$.
Reason: Energy is required in shifting away the negatively charged electron from the positively charged nucleus.

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Choose the correct option regarding: Assertion: Energy of the orbital decreases with increase of $n$.Reason: Energy is required in shifting away the negatively charged electron from the positively charged nucleus.