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Q1.10: NCERT Physics - Part 1 UNITS AND MEASUREMENT 1.10 Solution: State the number of significant figures in the following: (a)…

⚠️ Common Exam Traps & Conceptual Pitfalls

Students frequently ignore trailing zeros after the decimal point, treating 0.2370 as having only three significant figures. Remember that any zero to the right of the decimal point and after a non-zero digit is significant, so 0.2370 has four significant figures.

State the number of significant figures in the following: (a) 0.007 m_ (b) 2.64 _ 10__ kg (c) 0.2370 g cm__ (d) 6.320 J (e) 6.032 N m__ (f) 0.0006032 m_

Step-by-Step Verified Solution

**Answer:** (a) 1 (b) 3 (c) 4 (d) 4 (e) 4 (f) 4 **Step-by-Step Explanation:** (a) 0.007 m_ has one significant figure (7). (b) 2.64×10242.64 \times 10^{24} kg has three significant figures. (c) 0.2370 g cm__ has four significant figures. (d) 6.320 J has four significant figures. (e) 6.032 N m__ has four significant figures. (f) 0.0006032 m_ has four significant figures.

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