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A metal sphere 10.01 cm in diameter is p...

A metal sphere 10.01 cm in diameter is placed on a brass ring of internal diameter 10 cm and at the same temperature of `10^@C`. The temperature up to which they should be heated together so that the metal sphere just passes through the ring is `[alpha_(me ta l)= 12 xx 10^-6/@C`and alpha_brass= 18 xx 10^-6/@C]`

A

`167^@C`

B

`177^@C`

C

`187^@C`

D

`197^@C`

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