An iron tyre is to be fitted onto a wood...

An iron tyre is to be fitted onto a wooden wheel 1.0 m in diameter. The diameter of the tyre is 6 mm smaller than that of wheel the tyre should be heated so that its temperature increases by a minimum of (coefficient of volume expansion of iron is `3.6xx10^-5//^@C`)

`167^(@)C`

`334^(@) C`

`500^(@) C`

`1000^(@) C`

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