The effictive length of a simple pendulum is the sum of the following three : length of string , radius of bob , and length of hook. In a simple pendulum experiment , the length of the string , as measured by a meter scale , is `92.0 cm`. The radius of the bob combined with the length of the hook , as measured by a vernier callipers , is `2.15 cm`. The effictive length of the pendulum isA. `94.1 cm`B. `94.2 cm`C. `94.15 cm`D. `94 cm`

The effictive length of a simple pendulum is the sum of the following

1.	The effictive length of a simple pendulum is the sum of the following three : length of string , radius of bob , and length of hook. In a simple pendulum experiment , the length of the string , as measured by a meter scale , is `92.0 cm`. The radius of the bob combined with the length of the hook , as measured by a vernier callipers , is `2.15 cm`. The effictive length of the pendulum isA. `94.1 cm`B. `94.2 cm`C. `94.15 cm`D. `94 cm`
Answer» Correct Answer - B `( 92.0 + 2.15) cm = 94.15 cm`. Rounding off to first decimal place , we get `94.2 cm`.

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