Last Updated On 01-06-2023 - By Jeesha Sara
The figure shows a uniform rod lying along the 
-axis. The locus of all the points lying on the 
plane, about which the moment of inertia of the rod is same as that 
, is
.png)
|
a) |
Anellipse |
b) |
A circle |
c) |
A parabola |
d) |
A straight line |
Question ID - 100196 :- The figure shows a uniform rod lying along the -axis. The locus of all the points lying on the plane, about which the moment of inertia of the rod is same as that , is
a)
Anellipse
b)
A circle
c)
A parabola
d)
A straight line
The figure shows a uniform rod lying along the -axis. The locus of all the points lying on the plane, about which the moment of inertia of the rod is same as that , is
|
a) |
Anellipse |
b) |
A circle |
c) |
A parabola |
d) |
A straight line |
(b)
Let us take any point 
on 
plane. The MI of the rod about 
is
.png)
Hence , 
MI of the rod about 
Applying 
we get an equation of a circle
Next Question :
A cord is wrapped on a pulley (disk) of mass 
and radius 
as shown in Figure. To one end of the cord, a block of mass 
is connected as shown and to other end in (a) a force of 2 
and in (b) a block of mass 
.Let angular acceleration of the disk in 
and 
is 
and
, respectively, then (cord is not slipping on the pulley)
.png)
|
a) |
|
b) |
|
c) |
|
d) |
None of these |
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