NTA Abhyas JEE Main2020PhysicsThermodynamicsPractice
Two bodies of equal masses are heated at a uniform rate under identical conditions. The change in temperature in the two cases is shown graphically. The ratio of their specific heats in the solid state is
Options
- A1:3
- B1:2
- C2:1
- D1:4
Correct answer
A. 1:3
Step-by-step solution
P ( Δ t ) = m   s ( Δ θ ) ( Δ θ ) ( Δ t ) = P m s Δ θ Δ t 1 = 60 2 = 30 Δ θ Δ t 2 = 40 4 = 10 s 1 s 2 = Δ θ Δ t 2 Δ θ Δ t 1 = 1 3