Using the expression 2 d sin q = l , one calculates the values of d by measuring the…
Physics · JEE Advanced · NTA Exams — Physics and Measurement
Using the expression 2d sin q = l, one calculates the values of d by measuring the corresponding angles q in the range 0 to 90°. The wavelength l is exactly known and the error in q is constant for all values of q. As q increases from 0°,
- the absolute error in d remains constant
- the absolute error in d increases
- the fractional error in d remains constant
- the fractional error in d decreases
Answer
(D) the fractional error in d decreases
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