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

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 to four significant figures 12.6552

Express the following to four significant figures 45.3712

Express the following to four significant figures 23.4551

When 13546 is rounded off to four significant figures it becomes

When 13546 is rounded off to four significant figures it becomes

Express the following to four significant figures 1.236981

When 57.986 is rounded off to 4 significant figures, then it becomes