A student determined Young's Modulus of elasticity using the formula 
The value of g is taken to be 9.8m/s 2 , without any significant error, his observation are as following.
Physical Quantity Least count of the Equipment used for measurement Observed value
Mass(M) 1 g 2 kg
Length of bar(L) 1 mm 1 m
Breadth of bar(b) 0.1 mm 4 cm
Thickness of bar(d) 0.01 mm 0.4 cm
Depression(8) 0.01 mm 5 mm
Then the fractional error in the measurement Y of is:
Text Solution
Verified by ExpertsThe correct answer is:
B
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