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A copper ball of mass 100 g is at a...

A copper ball of mass 100 g is at a temperature T . It is droped in a copper calorimeter of mass 100 g , filled with 170 g of water at room temperature . Subseqently , the temperature of the system is found to be `75 ^(@ ) C,` T is given by ( given : room temperature `= 30 ^(@) C ,` specific heat of copper `= 0.1 "cal" // g ^(@) C `)

A

`800 ^(@) C `

B

`885 ^(@) C`

C

`1250 ^(@)C `

D

`825 ^(@)C `

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A copper ball of mass 100 g is at a temperature T. it is dropped in a copper calorimeter of mass 100 g, filled with 170 g of water at room temperature. Subsequently, the temperature of the system is found to be 75^(@) C. T is given by (given: room temperature = 30^(@) C , specific heat of copper = 0.1 cal/g " "^(@)C )

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