MHT CET Physics question
A metal block is made from a mixture of 2.4 kg of aluminium 1.6 kg of brass and 0.8 kg of copper. The amount of heat required to raise the temperature of this block from to is (Take, specific heats of aluminium, brass and copper are 0.216, 0.0917 and 0.0931 , respectively)
Answer: (B)
Solution
(m_1c_1m_2c_2m_3c_3)$ = 60 (2.4×0.216 + 1.6×0.0917 + 0.8×0.0931) =
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