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Two liquids of equal volume are thoroughly mixed. If their specific heats are `C_2,C_2 `,temperatures `theta_1,theta_2` and densities `d_1,d_2` respectively, the final temperature of the mixture is:
A. |
`(C_1 theta_1+C_2theta_2)/(d_1C_1+d_2C_2)` |
B. |
`(d_1C_1 theta_1+d_2C_2theta_2)/(d_1C_1+d_2C_2)` |
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C. |
`(d_1C_1 theta_1+d_2C_2theta_2)/(d_1theta_1+d_2theta_2)` |
D. |
`(d_1 theta_1+d_2theta_2)/(C_1theta_1+C_2theta_2)` |