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50 g of copper is heated to increase its...

50 g of copper is heated to increase its temperature by `10^@C`. If the same quantity of heat is given to 10 g water, the rise in its temperature is Specific heat of copper = 420 joule-kg^-1^@ C^-1` , Specific heat of water = 4200 joule-kg^-1^@ C^-1

A

`5^@C`

B

`6^@C`

C

`7^@C`

D

`8^@C`

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