Question 3(iv)Thermal capacities of substances A and B are same. If mass of A is more than mass of B then:(a) Which substance will have more specific heat capacity?(b) Which substance will show greater rise in temperature if the same amount of heat is supplied to both?

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(a) B will have more specific heat capacity.Reason —Specific heat capacity (c)=Heat Capacity of body (C’)mass of body (m)∴Specific heat capacity (c)∝1mass\text{Specific heat capacity (c)} = \dfrac{\text{Heat Capacity of body (C')}}{\text{mass of body (m)}} \[1em] \therefore \text{Specific heat capacity (c)} ∝ \dfrac{1}{\text{mass}}Specific heat capacity (c)=mass of body (m)Heat Capacity of body (C’)​∴Specific heat capacity (c)∝mass1​∴ Specific heat capacity of B will be more as its mass is less.(b) Both substances will show equal rise in temperature as their thermal capacities are the same.

Solved 2023 Question Paper ICSE Class 10 Physics — Question 26

Question 3(iv)