Units and Measurements · Significant figures & errors
The diameter of a wire measured by a screw gauge of least count 0.001 cm is 0.08 cm. The length measured by a scale of least count 0.1 cm is 150 cm. When a weight of 100 N is applied to the wire, the extension in length is 0.5 cm, measured by a micrometer of least count 0.001 cm. The error in the measured Young's modulus is . The value of is .
(Ignore the contribution of the load to Young's modulus error calculation)
(Ignore the contribution of the load to Young's modulus error calculation)
- (1)1.3
- (2)1.65
- (3)0.13
- (4)0.25
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