The uncertain digit in the measurement of a length reported as 41.68 cm is

If uncertainities in the measurement of position and momentum of a microscopic object of mass 'm' are equal, then the uncertaintry in the measurement of velocity is given by the expression

What do you mean by uncertainity in measurement ?

The significant digits in 283.68 are

The radius of a sphere measured is 4.68 ± 0.01 cm. Estimate the percentage error in the measurement of the volume of the sphere.

Find mid point of a line segment of length 6.8 cm.

While measuring the length of a pen, the measurement was taken from 2 cm mark of a ruler and the reading obtained was 13 cm. What is the length of the pen?

The length of rectangle is 8cm more than its breadth.If the perimeter of the rectangle is 68cm, its length and breadth are respectively

The length, breadth and thickness of a block' are measured as 125.6 cm, 6.5 cm and 0.23 cm respectively. Which measurement is least accurate ?