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Question
Solve the numerical example.
Write down the number of significant figures in the following: 0.003 m2, 0.1250 gm cm-2, 6.4 x 106 m, 1.6 x 10-19 C, 9.1 x 10-31 kg.
Solution
| Number | No. of significant figures | Reason |
| 0.003 m2 | 1 | Rule no. iii |
| 0.1250 g cm-2 | 4 | Rule no. iv |
| 6.4 × 106 m | 2 | Rule no. i |
| 1.6 × 10-19 C | 2 | Rule no. i |
| 9.1 × 10-31 kg | 2 | Rule no. i |
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