Energy level can be determined by comparing values (A) n=4,ℓ=1⇒(n+ℓ)=5 (B) n=4,ℓ=2⇒(n+ℓ)=6 (C) n=3,ℓ=1⇒(n+ℓ)=4 (D) n=3,ℓ=2⇒(n+ℓ)=5 (E) n=4,ℓ=0⇒(n+ℓ)=4 For same value of ( n+ℓ ), orbital having value of n, will have more energy. (B) > (A) > (D) > (E) > (C)