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Q.

The number of significant figures in 0.00340 is_____.

 

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answer is 1.

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Detailed Solution

Zeroes at the end of a number are significant only when they are present at the right hand side of the decimal place.

Zeroes at the start of a number are not significant.

Thus, 0.00340 has 3 significant figures.

Hence, the correct answer is 3.

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