The length of a pole is 42.3 m. Find the number of significant figures, when its length is expressed in kilometres.

State the number of significant figures present in the following expressions:4.000m

When a force is expressed in dyne, the number of sinificant figures is four. If it is expressed in newton, the number of significant figures will become (10^(5) "dyne" = 1N)

Express the following numbers to three significant figures :

The unit of measurement is mm. If the measure is 4.2 cm, then find the number of significant figures in he measurement.

Assertion : The length of a cylinder is 23.8 cm. In this measurement there are three significant figures. Reason : The same length when expressed in millimeter as 23800 mm has four significant figures. Which of the following is correct?

When Energy is expressed in erg the no of significant figure is four. If it is expressed in joule the no of significant figures will become

The length of object measured to the nearest centimetre is 120 cm. If the length is expressed in mm, then the number of significant figures is

A length 5.997 m rounded off to three significant figures is written as

A length 5.997 m rounded off to three significant figures is written as