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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.
Related Questions: - If a solid sphere of mass 1 kg and radius 0.1 m rolls without slipping at a uniform
- An air core solenoid has 1000 turns and is one meter long. Its cross sectional area
- 10 mA current can pass through a galvanometer of resistance 25 ohm.
- If we study the vibration of a pipe open at both ends
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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
- If a solid sphere of mass 1 kg and radius 0.1 m rolls without slipping at a uniform
- An air core solenoid has 1000 turns and is one meter long. Its cross sectional area
- 10 mA current can pass through a galvanometer of resistance 25 ohm.
- If we study the vibration of a pipe open at both ends
- A small oil drop of mass 10⁻⁶kg is hanging in at rest between two plates seperated
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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