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0.15 Using the expression 2d sin 0 = 2, ...

0.15 Using the expression 2d sin 0 = 2, one calculates the values of d by measuring the corresponding angles 0 in the range 0 to 90°. The wavelength 2 is exactly known and the error in 0 is constant for all values of 0. As 0 increases from 0°, (JEE-Advance 2013] (1) the absolute error in d remains constant (2) the absolute error in d increases (3) the fractional error in d remains constant

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