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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
- A particle moves with constant speed v along a circular path of radius r and completes
- A coil of 40 henry inductance is connected in series with a resistance of 8 ohm
- Power dissipated in an LCR series circuit connected to an a.c source of emf ? is
- A glass slab consists of thin uniform layers of progressively decreasing refractive
- If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental
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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