A solar cell of surface area 4 cm² delivers a current of 0.1 A at 0.6 V. If the intensity of solar radiation impinging on the solar cell is 1.0 kW/m², the efficiency of the solar cell is
1
30%
2
40%
3
50%
4
20%
A solar cell of surface area 4 cm² delivers a current of 0.1 A at 0.6 V. If the intensity of solar radiation impinging on the solar cell is 1.0 kW/m², the efficiency of the solar cell is