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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
- Shear modulus is zero for
- A particle is moving such that its position coordinates (x,y) are (2 m,3 m) at time
- A parallel beam of fast moving electrons is incident normally on a narrow slit.
- A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest
- RMS velocity of gas is proportional to
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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