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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:
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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
A good fuel is one which possesses:
(a) high calorific value and low ignition temperature
(b) high calorific value and high ignition temperature
(c) high calorific value and moderate ignition temperature
(d) low calorific value and moderate ignition temperature
Name the component which is found in natural gas well as in biogas.
The ultimate source of energy stored in fossil fuels is:
(a) moon
(b) earth
(c) sun
(d) sea
Which of the following is not an example of a biomass energy source?
(a) wood
(b) biogas
(c) atomic energy
(d) cow-dung
Why is the use of wood as a fuel not advisable although wood is a renewable source of energy?
Choose the correct answer.
The coal that has the highest percentage of carbon is
State whether the following is True or False.
China, the USA, and Spain are major producers of wind energy.
What do you know about wind energy?
Why is charcoal considered better fuel than wood?
Match the items given in Column I with the items of Column II.
| Column I | Column II |
| (a) Used for road surfacing | (i) Black gold |
| (b) Natural gas | (ii) Vaseline and candles |
| (c) Petroleum | (iii) Bitumen |
| (d) Paraffin wax | (iv) CNG |
