The time period of a simple pendulum may depend on its length

PHYSICS · Multi-part · CBSE · Physics · Oscillations · Oscillations

Problem

The time period

T

of a simple pendulum may depend on its length

l

, the mass of the bob

m

and the acceleration due to gravity

g

. Four students propose the following possible relationships: (i) Identify the dimensionally correct expression. (ii) Calculate

T

for

l = 0.64\,\text{m}

g = 9.8\,\text{m s}^{-2}