In an experiment, the values of refractive index of glass were found to be 1.54, 1.53 , 1.44 and 1.54 , 1.56 and 1.45 in successive measurements . Calculate (i) Mean value of refractive index of glass (ii) Absolute error in each measurement (iii) Mean absolute error (iv) relative error and (v) Percentage error.

Options

A. 1.51, 0.04, 0.03, 3%
B. 1.51, 0.4, 0.03, 3%
C. 15.1, 0.04, 0.03, 3%
D. 15.1, 0.04, 0.3, 3%

Answer

A