Question

A beaker of radius 10cm is filled with water calculate the force of surface tension on any diametrical line on its surface surface tension of water is 0.075 Newton per metre

Answer 1

Given:

A beaker of radius 10cm is filled with water. Surface Tension is 0.075 N/m.

To find:

Force along diameter?

Calculation:

First of all, diameter of beaker = 2r = 2 × 10 = 20cm.

Now, surface tension is represented as:

$\rm ST = \dfrac{force}{length}$

$\rm \implies 0.075= \dfrac{force}{ (\frac{20}{100}) }$

$\rm \implies 0.075= \dfrac{force}{ 0.2}$

$\rm \implies force = 0.075 \times 0.2$

$\rm \implies force = 0.015 \: N$

So, force on diameter is 0.015 N.

Answer 2

Answer:

A beaker of radius 10cm is filled with water. Surface Tension is 0.075 N/m.

To find:

Force along diameter?

Calculation:

First of all, diameter of beaker = 2r = 2 × 10 = 20cm.

Now, surface tension is represented as:

Explanation:

$st = \frac{force}{length}$

$⟹0.075 = \frac{force}{ \frac{20}{100} }$

$⟹0.075 = \frac{force}{0.2}$

$force = 0.075 \times 0.2$

$⟹force = 0.015n$

SO, FORCE ON DIAMETER IS 0.015N