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A copper collar is to fit tightly about ...

A copper collar is to fit tightly about a steel shaft that has a diameter of 6 cm at `20^(@)C`. The inside diameter of the copper collar at that temperature is 5.98 cm.
If the breaking stress of copper is 230 `N*m^(-2)` at what temperature will the copper collar break as it cools?

A

`20^(@)C`

B

`47^(@)C`

C

`94^(@)C`

D

`217^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C
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