If I1 and I2 be the moment of inertia of two bodies of identical geometrical shape, the first is made of aluminium and second of iron, then

Question

If I1 and I2 be the moment of inertia of two bodies of identical geometrical shape, the first is made of aluminium and second of iron, then (A)  l1<l2  (B)  l1=l2  (C)  l1>l2  (D) relation between l1 and l2 depends on the centrashapes of the bodies

Tardigrade Admin · Accepted Answer

The density of iron is greater than that of aluminium, so comparatively the similar size of aluminium has smaller mass than that of iron. Which implies I1 is smaller than I2.

Q. If $I_{1}$ and $I_{2}$ be the moment of inertia of two bodies of identical geometrical shape, the first is made of aluminium and second of iron, then

$l_{1} < l_{2}$

$l_{1} = l_{2}$

$l_{1} > l_{2}$

relation between $l_{1}$ and $l_{2}$ depends on the centrashapes of the bodies

The density of iron is greater than that of aluminium, so comparatively the similar size of aluminium has smaller mass than that of iron. Which implies $I_{1}$ is smaller than $I_{2} .$

Q. If I1​ and I2​ be the moment of inertia of two bodies of identical geometrical shape, the first is made of aluminium and second of iron, then

l1​<l2​

l1​=l2​

l1​>l2​

relation between l1​ and l2​ depends on the centrashapes of the bodies