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Physics · JEE | UNITS AND MEASUREMENT
हिन्दीThe difference between two lengths \( 5.43 \text{ m} \) and \( 1.2 \text{ m} \) is correctly reported with proper significant figures as:
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Correct answer · Option C
\( 4.2 \text{ m} \)
Explanation
Subtraction result = \( 5.43 - 1.2 = 4.23 \text{ m} \). Since \( 1.2 \text{ m} \) has only one decimal place, the result is rounded off to one decimal place, yielding \( 4.2 \text{ m} \).
