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Question 1 Solar cell also known as photovoltaic device, is the device that convert incident of solar radiation energy into electrical energy. Solar radiation spectrum as shown in Figure 1.1 shows the spectral intensity of the sun emitted to above earth's atmosphere and earth's surface over the range of wavelength. Spectral Irradiance (W/m²/nm) (b) 2.5- 2- 1.5- Solar Radiation Spectrum UV Visible Infrared Solar radiation regime (UV-Visible-IR) Sunlight at Top of the Atmosphere 5250°C Blackbody Spectrum H₂O H₂O Radiation at Sea Level Absorption Bands HO CO, H₂O H₂O 250 500 750 1000 1250 1500 1750 2000 2250 2500 Wavelength (nm) Figure 1.1 (a) In your opinion, explain the performance of solar cell when the position of solar cell at air mass, m (AMm) at AMO, AM1 and AM1.5. (6 Marks) Solar cell having a good potential in several application such as, (i) solar transportation (ii) solar greenhouse (iii) solar water heater (iv) solar streetlight (v) solar power supply With the aid of diagram, choose ONE from four potential of solar cell as listed in (i) to (iv) and discuss the function, mechanism, and importance of solar cell in that application.