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प्रश्न
Can you tell?
Which forms of energy from the sun are used in solar energy devices?
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उत्तर
Solar energy devices use two primary forms of energy from the sun:
-
Light Energy: Utilized in solar photovoltaic (PV) cells to convert sunlight directly into electricity.
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Heat Energy: Harnessed in solar thermal devices, such as solar water heaters, solar cookers, and concentrated solar power (CSP) systems, to generate heat or electricity.
संबंधित प्रश्न
Compare and contrast fossil fuels and the Sun as direct sources of energy
The natural gas consists mainly of:
(a) methane
(b) ethane
(c) propane
(d) butane
Name the original source of wind energy.
State whether the following statement is true or false:
Tidal energy is one of the forms in which solar energy manifests itself in oceans.
What are the two ways in which cow-dung can be used as a fuel? Which of them is better and why?
The constituent of biogas which makes it an excellent fuel is:
(a) butane
(b) methane
(c) propane
(d) ethane
A certain form of energy is available due to the difference in the temperature of water at the surface of the ocean and its deeper levels.
(a) Name the form of energy.
(b) Is this energy ultimately derived from the sun or not?
(c) Explain how this form of energy can be converted into electricity.
(d) What is the minimum temperature difference in water at the surface of ocean and its deeper level which is required to operate power plants based on is energy?
Select the renewable and non-renewable sources of energy from the following :
- Coal
- Wood
- Water
- Diesel
- Wind
- Oil
Describe the four major types of coal.
Explain why is it no wise to regard wood as a renewable sources of energy.
