Physics · May / June 2026 · Paper 11 · Question 18

Cooking oil of mass 0.25 kg is heated using a heater of power 50 W. The graph shows how the temperature of the cooking oil changes with time. Thermal energy transfer from the oil to the surroundings is negligible. What is the specific heat capacity of the cooking oil?

1. A20 J / (kg °C)
2. B30 J / (kg °C)
3. C1200 J / (kg °C)
4. D1800 J / (kg °C)

As printed in the paper