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Standard XII

Mathematics

Standard Equation of Ellipse

When capillar...

Question

When capillary tubes of different radii 'r' dipped in water, water rises to different heights 'h' in them, then :

h r^{2} =

constant

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=

constant

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\frac{h}{r} =

constant

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\frac{h}{r^{2}} =

constant

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Solution

The correct option is A hr $=$ constant
We have, $h = \frac{2 σ cos θ}{r ρ g}$
$\Rightarrow h \cdot r =$ constant.

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When capillary tubes of different radii 'r' dipped in water, water rises to different heights 'h' in them, then :

The correct option is A hr= constantWe have, h=2σcosθrρg⇒h⋅r= constant.

The correct option is A hr $=$ constant
We have, $h = \frac{2 σ cos θ}{r ρ g}$
$\Rightarrow h \cdot r =$ constant.