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If we measure a length l=6.24 cm with th...

If we measure a length l=6.24 cm with the help of a vernier callipers, then
(a) What is least count of vernier callipers?
(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)13.214 +234.6 +7.0350 +6.38
= 261.229
=261.2
(rounding off to smallest one number of decimal place)
(b) 1247 +134.5+450 +78
= 1909.5
=1910
(rounding off to smallest one number of decimal place)
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