The ratio of mass densities of the two bodies is 3:4 and the ratio of their specific heats is 4:3. Then the ratio of their thermal capacities for unit volume is:

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Thermal capacity: C = Δ T Q ​ = m s = ( ρ vol ) s For unit volume: C 2 ​ C 1 ​ ​ = ( ρ 2 ​ × 1 ) s 2 ​ ( ρ 1 ​ × 1 ) s 1 ​ ​ C 2 ​ C 1 ​ ​ = ρ 2 ​ s 2 ​ ρ 1 ​ s 1 ​ ​ = 4 3 ​ × 3 4 ​ = 1 1 ​

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