Question

The number of significant figures in 0.02450.
​

Answer 1

Given : 0.02450

To find : number of significant figures

Solution:

All non zero digits are significant

hence 2 , 4 & 5 are significant

All zeroes between significant digits are significant

but there are no zeroes between 2 , 4 & 5

All zeroes ending in decimal  ( at the right end )

are significant as they show accuracy

hence last 0 is significant

Hence significant  figures in 0.02450.

​are 4

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Answer 2

Explanation:

in a number, non zero digits are significant

like here →2,4,5 are significant

and the zero to the right of decimal , after a non zero no.

are significant

like here → 0 in the last is significant

but the zero just after the decimal is non significant