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If the value of principle quantum number is same, then penetration power of orbitals increases in the order;
A
s < p < d < f
B
f < d < p < s
C
p < s < f < d
D
f < d < s < p
Explanation
The penetration power of an orbital is a measure of how effectively an electron in that orbital can get close the nucleus. For a given principle quantum number n, the penetration power of orbital follows this order: s > p > d > f
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