Find the number of significant figures in the following physical quantities: (i) 5.506 cm(ii) 0.0509 kg(iii) 08.0075 s.

Find the number of significant figures in the following physical quant

1.	Find the number of significant figures in the following physical quantities: (i) 5.506 cm(ii) 0.0509 kg(iii) 08.0075 s.
Answer» SOLUTION :(i) 5.506 cm has four significant figures because zero PLACED between two non-zero DIGITS is significant. (II) 0.0509 kg has three significant figures because zero placed to the left of first non-zero digit is not significant. (iii) 08.0075 s has five significant figures because zero placed before the first non-zero digit is insignificant while ZEROS placed between two non-zero digits are significant.