Assertion (A): In \( \mathrm{H} \) atom, the energy of \( 3 d \)-level is Reason (R): Reason R: ...

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Assertion (A): In \( \mathrm{H} \) atom, the energy of \( 3 d \)-level is
Reason (R): Reason R: An orbital with lower value of \( (n+l) \) has energy smaller than the orbital with larger value of \( (n+l) \)
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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