1) How do we calculate a metal density’s “fractional error” (write the formula)?
2) What is “Zero reading” or “Zero error” and how to find it for “Micrometer caliper”?
3) What is “fractional error” for the following formula?
Z= 2/3 X2Y3 , X= 7m , Y= 4m, σx=0.2m , σy=0.1m
σZ=?