Question

A drop of oil of volume 10m it spread out on water to make a circular firm of radius 10m calculate the tickness of the firm

Answer 1

h = 3.1 cm

Step-by-step explanation:

Given that,

The volume of a oil drop, V = 10 m

Radius, r = 10 m

We need to find the thickness of the film. The film is in the form of a cylinder whose volume is as follows :

`V=\pi r^2 h\\\\h=(V)/(\pi r^2)\\\\h=(10)/(\pi * 10^2)\\\\h=0.031\ m\\\\h=3.1\ cm`

So, the thickness of the film is equal to 3.1 cm.