Which of the following measurement is most precise?

⇦

⇨

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:

1. A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle
2. In an interference experiment, third bright fringe is obtained at a point
3. At what height h above earth, the value of g becomes g/2 (where R=radius of earth)?
4. A step-up transformer operates on a 230 V line and supplies a current of 2 A.
5. A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire

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

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends