A standard refill tube is a cylinder of internal radius about 0.1 cm and ink length 10 cm. The ink volume is πr²h ≈ 3.14 × (0.1)² × 10 ≈ 0.314 cm³ (or ~0.3 mL). Ganita Manjari Part 2 Class 9 ...
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A standard refill tube is a cylinder of internal radius about 0.1 cm and ink length 10 cm. The ink volume is πr²h ≈ 3.14 × (0.1)² × 10 ≈ 0.314 cm³ (or ~0.3 mL). Ganita Manjari Part 2 Class 9 ...