Errors in Measurement NEET Questions

Physics - Physics and Measurement

Errors in Measurement MCQ Questions


13.
Which of the following statements is true about systematic errors?

NEET - 2019

A.
They occur due to unpredictable fluctuations.
B.
They can be reduced by improving experimental techniques.
C.
They are random in nature.
D.
They cannot be corrected.
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ANSWER :
B. They can be reduced by improving experimental techniques.
14.
The relative error in measuring a quantity is found by:
A.
Absolute error × 100
B.
Absolute error / True value
C.
(True value – Measured value) / True value
D.
Measured value / Absolute error
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ANSWER :
B. Absolute error / True value
15.
A measuring tape has a least count of 1 mm. What is its absolute error?
A.
1 mm
B.
0.5 mm
C.
2 mm
D.
0.1 mm
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ANSWER :
A. 1 mm
16.
Which type of error can be completely eliminated?
A.
Systematic error
B.
Random error
C.
Gross error
D.
Absolute error
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ANSWER :
A. Systematic error
17.
If the percentage error in velocity is 2%, then the error in kinetic energy calculation is:
A.
2%
B.
4%
C.
6%
D.
8%
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ANSWER :
B. 4%
18.
The relative error in a physical quantity is 0.02. If the quantity itself is 50.0 units, the absolute error is:

NEET - 2020

A.
0.01 units
B.
1.0 units
C.
0.1 units
D.
10.0 units
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ANSWER :
B. 1.0 units