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Grade 11IIT JEE Entrance Exam

a student performs experiment with simple pendulum and measures time for 10 vibration.if he measures a time for 100 vibrations,the relative error in the measurement of time period will be reduced by

Profile image of Bidisha Baruah
11 Years agoGrade 11
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1 Answer

Profile image of Vikas TU
6 Years ago
% error for 10 vibrations is 10 %
% error for 100 vibrations is 1 %
% of the error reduced is given by =[First error − second error/First error] ×100
=[10−1/10×100] =90%

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