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Time period of a simple pendulum is given by T =2 g where is the length of pendulum and g is acceleration due to gravity. If percentage increase in the length and acceleration due to gravity are 69 % and 21 % respectively then find out percentage increase in time period.

Correct answer

18.18

Step-by-step solution

T ^ - T T 100= ( ^ g g ^ -1 ) 100= ( 1.69 1.21 -1 ) 100= ( 1.3 1.1 -1 ) 100= 0.2 1.1 100= 200 11 =18.18 %

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