Question

A liquid rises to a height of 3.3 cm in a capillary tube of radius r. If the radius of the capillary tube is made 0.75 r,then the height to which the liquid will rise in capillary is...
a) 3.3 cm
b) 2.2 cm
c) 4.4 cm
d) 1.65 cm
plz. solve & explain...

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Answer 1

Answer:

C. 4.4 cm

Explanation:

Initial hight (h1)= 3.3 cm

Initial radius (r1) = r

Final radius (r2) = 0.75 × r

Final hight (h2) =?

We know,

Final hight (h2) = h1 × (r1 ÷ r2)

= 3.3 × (r ÷ 0.75r)

= 3.3 × (1 ÷ 0.75)

= 4.4 cm

Answer 2

Answer:

If the radius of the capillary tube is made 0.75 r,then the ... the height to which the liquid will rise in capillary is... a) 3.3 cm