Question

Water rises in a vertical capillary tube upto a height of 2.0 cm. If the tube is inclined at an angle of $60^{o}$ with the vertical, then upto what length the water will rise in the tube

• A. 2.0 cm
• B. 4.0 cm
• C. $\frac{4}{\sqrt{3}}$cm
• D. $2\sqrt{2}$ cm

Answer 1

Answer: (B)

4.0 cm

Answer 2

The height upto which water will rise $l = \frac{h}{\cos\alpha} = \frac{2cm}{\cos 60} = 4cm$. [h = vertical height, α = angle with vertical]