The length, breadth and thickness of a rectangular sheet of metal are 4.234 m, 1.005 m, and 2.01 cm respectively. Give the area and volume of the sheet to correct significant figures.

A physical quantity P is related to four observables a, b, c and das follows: P = a3b 2 / √(c ) d The percentage error of measurement in a, b, c and d are 1% 3% 4% and 2%, respectively. What is the percentage error in the quantity p? If the value of p calculated using the above relation turns out to be 3.763, to what value should you around off the result?

January 27, 2019