Question

if the length of simple pendulum is increased by 300% then the time period will be increased by

Answer 1

Answer:Let length of simple pendulum is L , time period is T

We know, time period is given by T = 2π√(L/g) -----(1)

A/C to question,

Length of simple pendulum = L + 300% of L

= L + 300L/100

= L + 3L

= 4L

Time period , T' = 2π√(4L/g) = 2 × 2π√(L/g)

From equation (1), T' = 2T

% change in time period = (T' - T)/T × 100

= (2T - T)/T × 100

= 100%

Explanation: