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MHT CET · Physics · Mechanical Properties of Fluids

Water rises to height \(2 \cdot 2 \mathrm{~cm}\) in glass capillary tube. The height to which same water rises in another capillary having \(\frac{1}{4}\) area of cross-section is

  1. A \(16 \cdot 4 \mathrm{~cm}\)
  2. B \(4 \cdot 4 \mathrm{~cm}\)
  3. C \(8 \cdot 4 \mathrm{~cm}\)
  4. D \(2 \cdot 2 \mathrm{~cm}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(4 \cdot 4 \mathrm{~cm}\)

Step-by-step Solution

Detailed explanation

\(\mathrm{h}_{1}=2.2 \mathrm{~cm}, \mathrm{~h}_{2}=?\)
\(\mathrm{~h}_{1} \mathrm{r}_{1}=\mathrm{h}_{2} \mathrm{r}_{2}\)
\(\mathrm{~h}_{1} \sqrt{\mathrm{A}_{1}}=\mathrm{h}_{2} \sqrt{\mathrm{A}_{2}}\)
\(\mathrm{~h}_{2}=\frac{\mathrm{h}_{1} \sqrt{\mathrm{A}_{1}}}{\sqrt{\mathrm{A}_{2}}}=2.2 \times 2=4.4 \mathrm{~cm}\)