m Q 2. a) Planet Earth has an average temperature of 27°C and surface area is 6x1014 m². If planet Earth is a black body
Posted: Sun May 15, 2022 4:01 pm
m Q 2. a) Planet Earth has an average temperature of 27°C and surface area is 6x1014 m². If planet Earth is a black body: (1) Calculate the rate at which thermal energy is radiated at the Earth's surface (ii) Find the frequency at which maximum thermal power is radiated at the Earth's surface. b) Discuss any two advantages and any two advantages of a gallium arsenide photovoltaic cell in comparison to a crystalline-silicon photovoltaic cell. |