Section:$143$ Topic:$$Some$$Oscillating$$Systems $$ Type:$$Numerical

What must be the length of a simple pendulum with a period of $2\mathrm{.}0$ s if g $=9\mathrm{.}8$ m$/$s$2?$

A$)99$ cm $$ B$)97$ m $$ C$)6\mathrm{.}2$ cm $$ D$)3\mathrm{.}1$ m $$ E$)2\mathrm{.}0$ m$$

Ans:

A