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Which of the following measurement is most precise?
Options
(a) 5.00 mm
(b) 5.00 cm
(c) 5.00 m
(d) 5.00 km
Correct Answer:
5.00 mm
Explanation:
Precision is the degree to which several measurements provide answers very close to each other. It is an indicator of the scatter in the data. The lesser the scatter, higher the precision.
Let us first check the units. In all the options magnitude is same but units of measurement are different. As here 5.00 mm has the smallest unit. All given measurements are correct up to two decimal places. However, the absolute error in (a) is 0.01 mm which is least of all the four. So it is most precise.
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Physical World and Measurement
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The electron drift speed is small and the change of the electron is also small
- A beam of light of wavelength 600 nm from a distant source falls
- The Davisson- Germer experiment is the direct evidence of
- For the normal eye, the cornea of eye provides a converging power of 40D
- Which of the following is not a thermodynamical coordinate?
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Physical World and Measurement (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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