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Water rises to a height of 6 cm in a cap...

Water rises to a height of 6 cm in a capillary tube of radius `r`. If the radius of the capillary tube is 3r, the height to which water will rise is ….cm.

A

4 mm

B

1 mm

C

3 mm

D

1 cm

Text Solution

Verified by Experts

The correct Answer is:
B
`h_(1)r_(1)=h_(2)r_(2)`
` :. r_(2) =(h_(1)r_(1))/(h_(2)) =(5xx0.2)/10 =0.1 ` cm = 1 mm
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