5 While measuring the length of a paper clip on a scale, the reading at one end is 2.5 cm and at the other end is 6.8cm. What is the actual length of the paper clip? m (0.5 Points) 09.3 cm 6.8 cm 4.3 cm D Can't be determined
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Step-by-step explanation:
The measured distance by the student is 3.50 cm which means the least count of the measurement done is 0.01 cm.
A screw gauge having 100 divisions on a circular scale with a pitch of 1 mm will have a least count of (1 mm)/(100) i.e. 0.01 mm
similarly screw gauge having 50 divisions on a circular scale with a pitch of 1 mm will have a least count of (1 mm)/(50) i.e. 0.5 mm
A meter scale has a least count of 1 mm.
And the least count of a vernier caliper which has 10 divisions in 1 cm on main scale and 10 divisions in vernier scale match with 9 division in main scale can be given as
1 cm/(10*10) = 0.01 cm
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