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Home  >>  AIMS  >>  Class11  >>  Physics  >>  Units and Measurement
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A student performs an experiment for determination of $ g \bigg( \large\frac{4 \pi ^2l}{T^2}\bigg) $$, l \approx 1m$ , and he commits an error of $ \Delta l$. For T, he takes the time of n oscillations with the stop watch of least count $ \Delta T$ and he commits a human error of 0.1s. For which of the following data, the measurement of g will be most accurate?

  $ \Delta l$ $ \Delta T$ n Amplitude of oscillation
(A) 5 mm     0.2 s       10

5 mm

(B) 5 mm     0.2 s       20

5 mm

(C) 5 mm     0.1 s       20

1 mm

(D) 1 mm     0.1 s       50

1 mm


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1 Answer

0 votes
Hence (D) is the correct answer.
answered Jun 5, 2014 by thanvigandhi_1
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