Student Login

Home›Chapters›Units, Dimensions and Measurement PYQs›Significant Figures & Order of Magnitude›Question 8

NEET 2022 (Phase 1) · Significant Figures & Order of Magnitude

Significant Figures & Order of Magnitude question from NEET 2022 (Phase 1)

Q8NEET 2022 · PHASE 1Easy

Significant Figures & Order of Magnitude

The area of a rectangular field (in m2) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is

Show answer and solution

Answer: (d)

$A = 55.3 \times 25 = 1382.5\ \text{m}^2$
In multiplication keep the least number of significant figures: 25 has 2.
$1382.5 \to 1.4 \times 10^{3} = 14 \times 10^{2}\ \text{m}^2$
So the answer is (d).

Report a mistake

More questions on Significant Figures & Order of Magnitude

Taking into account of the significant figures, what is the value of 9.99 m - 0.0099 m?NEET 2020 (Phase 1)
For the four sets of three measured physical quantities as given below. Which of the…JEE Main 2020 (9 Jan, Shift 2)
The area of a square is 5.29 cm2. The area of 7 such squares taking into account the…JEE Main 2019 (9 Apr, Shift 2)
Match List - I (Event) with List - II (order of the time interval for happening of the…JEE Main 2014 (19 Apr, Shift 1)
The respective number of significant figures for the numbers 23.023, 0.0003 and 2.1 ×…JEE Main 2010 (AIEEE)
A body of mass m = 3.513 kg is moving along the x-axis with a speed of 5.00 ms−1. The…JEE Main 2008 (AIEEE)
Keeping the significant figures in view, the sum of the physical quantities 52.01 m…JEE Main 2026 (21 Jan, Shift 2)
Each side of a metallic cube of mass 5.580 kg is measured to the 9.0 cm. Keeping the…NEET 2026