A student determines the internal diameter $$\(d\)$$ of a test-tube. The apparatus is assembled as shown in Fig. 1.1. Fig. 1.1 The student: - fills a measuring cylinder with water up to the $$\(100 \mathrm{~cm}^{3}\)$$ mark - pours some water from the measuring cylinder into the test-tube. (i) A full-size diagram of the bottom part of the test-tube is shown in Fig. 1.2. Fig. 1.2 On Fig. 1.2, measure the height $$\(h\)$$ in centimetres to the nearest millimetre. Record your result in the top row of Table 1.1 on page 4. (ii) Fig. 1.3 shows the volume of water remaining in the measuring cylinder. Fig. 1.3 Take the reading $$\(R\)$$ of the volume of water remaining in the measuring cylinder. Record your result in the top row of Table 1.1. (iii) Calculate the volume $$\(V\)$$ of water poured into the test-tube. Use the equation: $$\[ V=\left(100 \mathrm{~cm}^{3}-R\right) . \]$$ Record your result the 1.1. Table 1.1

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