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Question
If the length of cylinder is measured to be
4
.
2
8
c
m
with an error of
0
.
0
1
c
m
, the percentage error in the measured length is nearly
A
0
.
4
%
B
0
.
5
%
C
0
.
2
%
D
0
.
1
%
Medium
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Solution
Verified by Toppr
Correct option is C)
Step 1 - Given that:
length,
l
=
4
.
2
8
c
m
△
l
=
0
.
0
1
c
m
Step 2 - Percentage error is given by
%
e
r
r
o
r
=
l
△
l
×
1
0
0
=
4
.
2
8
0
.
0
1
×
1
0
0
=
0
.
2
3
4
≈
0
.
2
%
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