Metal Ball & Ring: What Happens When Heated?

[amanara]

There is a metal ball and a metal ring , through which the metal ball can pass easily. But when the metal ball is heated , it can't pass through the metal ring. What will happen if metal ring is heated?(keeping metal ball normal)

 

[Rajini]

generally ring will expand! so ball can pass through

 

[amanara]

but , the ring should also expand inside according to thermal expansion.

 

[A.T.]

but , the ring should also expand inside according to thermal expansion.

No. If the thermal expansion is uniform, it causes an uniform scaling up of all distances, including the inner diameter of the ring. In other words: The ring will keep it's proportions, like the inner radius / outer radius ratio. If the outer radius increases, the inner will do so as well.

 

[Rajini]

what is the clearance between the ball (radius) and ring (radius and thickness!) (both being at room temperature).
Ball and ring made of which metal?

 

[fawk3s]

Ball and ring made of which metal?

it doesn't matter since they are both made of the same material.