Question

The H.M. of the reciprocal of first $n$ natural numbers is :-

• A. $\frac{n+1}{2}$
• B. $\frac{n}{\left(1+\frac{1}{2}+\frac{1}{3}+\dots +\frac{1}{n}\right)}$
• C. $\frac{2}{n+1}$
• D. None of these

Answer 1

Answer: (C)

Correct answer is (c) $\frac{2}{n+1}$