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The diameter of a wire is measured to be 0.0250 X 10-4 m. The number of significant figures in the measurement is 

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By Expert Faculty of Sri Chaitanya
a
five
b
four
c
three
d
nine
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detailed solution

Correct option is C

preceding zeros are not significant and powers of 10 are not counted as significant

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The number of significant figures in 0.06900 is

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