Physics · May / June 2019 · Paper 12 · Question 19

Three solar panels have a total area of 7.2 m². Together, they produce 1.0 kW of power. An area of 1.0 m² of each panel receives 0.80 kJ of energy from the Sun in 1.0 s. What is the efficiency of the solar panels?

1. A11%
2. B17%
3. C52%
4. D80%

As printed in the paper