Modul
e
8 : Applications of Integration - II
Lecture
24 : Volume of solids of revolution by washer method [Section 24.1]
24.1
Volumes of solids revolution the washer Method
24.1.1
Definition:
A solid is called a solid of revolution if it is generated by revolving a plane region about an axis.
24.1.2
Examples:
(i)
A solid right circular cylinder of radius
and height
can be generated by revolving the rectangle
about the
.
(ii)
A solid spherical ball of radius
can be generated by revolving the semi-disc
about the
1
2
3
4
5
6
7
8
9
10
11
12
13
14
and height 
can be generated by revolving the rectangle 
about the 
. 
can be generated by revolving the semi-disc 
