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If we measure a length l=3.267 cm with t...

If we measure a length l=3.267 cm with the help of a screw gauge, then
(a) What is maximum uncertainty or maximum possible error in l?
(b)How many significant figures are there in the measured length ?
(c) Which digits are absolutely correct and which is/are doubtful?

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
(a) `16.235 xx 0.217 xx 5`
`=17.614975`
`=20`
(rounding off to minimum one number of significant figure)
(b) `0.00435 xx 4.6`
`= 0.02001`
`=0.020`
(rounding off to minimum two number of significant figures)
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