The refractive index of water as measured by the relation `mu = ("Real depth")/("Apparent depth")` was found to have the values `1.29 , 1.33 , 1.34 , 1.35 , 1.32 , 1.36 , 1.30 , 1.33`. Calculate (i) mean value of `mu` (ii) mean value of absolute error (iii) relative error (iv) percentage error .
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The correct Answer is:
(i) 1.32 , (ii) `0.02` (iii) `0.015` (iv) `1.5%`
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