Question

Thickness of a pencil measured by a screw guage (least count 0.001) cones out to be 0.802 cm the percentage error in measurement is

Answer 1

Given that:

Thickness t=0.802cm

Least count=0.001 cm

now error in measuring t=(0.802+-0.001)

%age error=0.001/0.802×100%

=0.125%