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Byju's Answer
Standard XII
Physics
Vernier Caliper
Find the zero...
Question
Find the zero error in figure given
A
0.3 mm
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B
-0.3 mm
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C
-0.7 mm
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D
0.7 mm
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Solution
The correct option is
A
0.3 mm
Since, the zero of vernier scale is ahead of zero of main scale. So the error is positive zero error.
Least count of the vernier calliper
L
.
C
.
=
0.1
m
m
Since the
3
r
d
division matches with the main scale division.
Zero error
=
n
×
L
.
C
.
=
3
×
0.1
=
0.3
m
m
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