O-LevelPhysicsEnergy & Work5054/12 · May/June 2019 · Q191 Mark

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?

A11%

B17%

C52%

D80%

✓ Correct answer

B: 17%

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Topic: Energy & Work, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2019 Paper 1 Variant 2, question 19.

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