NEET Physics Significant Figures MCQ Question
Tick the incorrect statements? (1) For the formula radius = diameter/2, the factor 2 has infinite significant figures. (2) Keeping the significant figures in view, the sum of the physical quantities and 0.123 m is 205.3 m. (3) Keeping the significant figures in view, the radius of a circle is stated as 2.12 cm. Its area should be written as 14.11 cm². (4) 2.745 rounded off to three significant figures becomes 2.74.
Correct Answer
Detailed Explanation
The factor 2 in the formula radius = diameter/2 is an exact number and does not have significant figures. Therefore, statement (1) is incorrect.
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