Question

Given T = 2pie root (l/g) . At a planet g
decreases by 2% and length of
Pendulum is increased by 1%
Find the perecentage change in the
time period.​

Answer 1

Answer:

Let the time period be T with length of pendulum be lcm.As per the question increasing l by 22cm brings the period change by 20%=>the eqn for time period be 1.2T=2π√{(0.01l+0.22)/9.8},again as T=2π√(0.01l/9.8). So length of the pendulum is 50cm.

Answer 2

Answer:

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