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Standard X

Physics

Unit of Heat

62. A copper ...

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62. A copper ball of mass 100 gm is at a temperature T. It is dropped in a copper calorimeter of mass 100 gm, filled with 170 gm 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/gm^°C (1) 1250^°C (2) 825^°C (3) 800^°C (4) 885^° C

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Q. A copper ball of mass

100 g m

is at a temperature

T

. It is dropped in a copper calorimeter of mass

100 g m

, filled with

170 g m

of water at room temperature. Subsequently, the temperature of the system is found to be

75^{o} C

T

is given by :
(Given : room temperature

= 30^{o} C

, specific heat of copper

= 0.1 c a l / g m^{o} C

)

Q. A copper ball of mass

100 g m

is at a temperature

T

. It is dropped in a copper calorimeter of mass

100 g m

, filled with

170 g m

of water at room temperature. Subsequently, the temperature of the system is found to be

75^{o} C

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, specific heat of copper

= 0.1 c a l / g m^{o} C

)

Q. A copper ball of mass

100 g m

is at a temperature

T

. It is dropped in a copper calorimeter of mass

100 g m

, filled with

170 g m

of water at room temperature. Subsequently, the temperature of the system is found to be

75^{o} C

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is equal to
(Given : Room temperature

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, specific heat of copper

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100 g m

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