wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The breadth of a thin rectangular sheet is measured as 10.1 cm. The approximate error in the measurement is

A
±1%
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
±0.5%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
±0.1%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
±5%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B ±1%
The measurement of any physical quantity by any measuring instrument contains some uncertainity, this uncertainity is called error.

Here the uncertainity digit is 0.1

So the length can be 9.9,10.0or10.1...

Taking average value, we get 10.0

Now we can calculate the percentage error as,

Percentageerror=UncertainitydigitAveragevalue×100

=0.110×100=1%

The error value can be positive or negative. So,

Approximate error =±1%


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Error and Uncertainty
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon