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JEE Main 11 Jan 2019 Shift 2 Solved Paper

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Question : 25

Total: 90

A metal ball of mass 0.1 kg is heated upto 500°C and dropped into a vessel of heat capacity 800 JK–1 and containing 0.5 kg water. The initial temperature of water and vessel is 30°C. What is the approximate percentage increment in the temperature of thewater ? [Specific Heat Capacities of water and metal are, respectively, 4200 Jkg–1K–1 and 400 JKg–1K–1]

30%
20%
25%
15%

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