Test Index

CUSAT 2021 BTech Solved Paper Shift 3

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Question : 2

Total: 250

The refractive index of glass measured by a given method by four independent measurements is found to have values of 1.54,1.58,1.52 and 1.56 respectively. The mean value of refractive index with percentage error is

1.55±1.29%
1.55±0%
1.56±6%
1.56±0%

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