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Physics · 2016
JEE Main 2016 · 2016-04-03 Offline · Q1
A student measures the time period of 100 oscillations of a simple pendulum four times. The data set is 90 s, 91 s, 95 s and 92 s. If the minimum…
A student measures the time period of $\displaystyle 100$ oscillations of a simple pendulum four times. The data set is $\displaystyle 90$ s, $\displaystyle 91$ s, $\displaystyle 95$ s and $\displaystyle 92$ s. If the minimum division in the measuring clock is $\displaystyle 1$ s , then the reported mean time should be :
Official answer
(1)
$\displaystyle 92 \pm 2 \mathrm{~s}$
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JEE Main 2016 Physics question, with the answer from NTA’s final answer key. Where our answers come from.