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Standard XII
Chemistry
Units and Dimensions
The least cou...
Question
The least count of a vernier calipers having 20 vernier divisions when 1 M.S.D. = 0.1 cm is :
A
0.5 mm
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B
0.05 cm
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C
0.05 mm
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D
0.5 cm
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Solution
The correct option is
A
0.05 mm
The least count of vernier calipers is
L
.
C
=
(1 M.S.D / total number of vernier divisions )
So,
L
.
C
=
0.1
c
m
20
=
0.005
c
m
=
0.05
m
m
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