Errors in Measurement NEET Questions

Physics - Physics and Measurement

Errors in Measurement MCQ Questions


1.
The difference between the measured value and the true value of a quantity is called:
A.
Relative error
B.
Absolute error
C.
Percentage error
D.
Random error
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ANSWER :
B. Absolute error
2.
The errors in measurement that arise due to unpredictable fluctuations in temperature and voltage supply are known as:

NEET - 2023

A.
Personal errors
B.
Least count errors
C.
Random errors
D.
Instrumental errors
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ANSWER :
C. Random errors
3.
Which of the following correctly defines 'precision' of a measurement?
A.
Closeness of measured value to the true value
B.
Reproducibility or repeatability of a measurement
C.
Absence of systematic errors
D.
Smallness of absolute error
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ANSWER :
B. Reproducibility or repeatability of a measurement
4.
The mean value of 100 observations was found to be 50. Later, it was discovered that an observation 83 was misread as 38. The correct mean is:

NEET - 2017

A.
50.5
B.
50.45
C.
50.55
D.
50
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ANSWER :
B. 50.45
5.
Which of the following is an example of systematic error?
A.
Error due to parallax while reading a scale
B.
Error due to vibrations in the environment
C.
Zero error in a vernier callipers
D.
Statistical fluctuations in repeated readings
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ANSWER :
C. Zero error in a vernier callipers
6.
A student measures the length of a rod as 3.50 cm using a scale with a least count of 0.01 cm. The absolute error in this measurement is:

NEET - 2022

A.
0.005 cm
B.
0.01 cm
C.
0.05 cm
D.
0.1 cm
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ANSWER :
B. 0.01 cm