Physical World and Measurements

Significant Figures

  • A significant figure is defined as the figures which is considered reasonably trust worthy in number. The significant figures indicate the extent to which the readings are reliable.
  • All the non zero digits in a given number are significant without any regard to the location of the decimal point if any.
  • All zeroes occurring between two non zero digits are significant without any regards to the location of decimal point if any.
  • If the number is less than one, all the zeroes to the right of the decimal point but to the first non zero digit are not significant.
  • All the zeroes to the right of a decimal point are significant if they are not followed by a non zero digit.

Significant Figures View the Topic in this video From 17:16 To 55:08

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