Advertisements
Advertisements
प्रश्न
Observe the figure and label it properly:
- What is the figure related to?
- Why are reflectors used?
- Draw a flow chart showing different stages in such a process.
- How is the process used to generate electricity?
- What other method can be used to generate electricity using the same energy source?
उत्तर
- The figure is related to schematic diagram of the solar thermal power plant.
- Many reflectors reflect and concentrate solar radiation on absorbers.
- Thermal energy is first created from solar radiation's energy. Then, using that thermal energy, a turbine generator system is operated to produce electricity.
- Solar photovoltaic cells immediately transform the energy of solar radiation into electrical energy. The solar photovoltaic effect is what causes this. This energy transfer process results in the creation of DC electrical energy.
APPEARS IN
संबंधित प्रश्न
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
How much solar energy will be received by 1 m2 area in one hour if the solar constant be 1.4 kW/m2?
Fill in the following blank with suitable word:
A solar cell converts ................ energy into ................ energy.
Name the semi-conductor material which is usually used for making solar cells.
What is solar constant? What is the value of solar constant?
If the energy received by 5 m2 area in 10 minutes is 4200 kJ, calculate the value of solar constant.
With the help of a labelled diagram, explain the construction and working of a solar cooker.
The part of box-type solar cooker which is responsible for producing greenhouse effect is:
(a) plane mirror reflector
(b) black coating inside the box
(c) glass sheet cover
(d) utensils placed in the cooker box
Solar cells are made of:
(a) conductors
(b) insulators
(c) semi-conductors
(d) super-conductors
In many applications, solar cells are connected to rechargeable batteries. Why is this so?
Which of the following solar radiations pass through the atmosphere of Earth: X -rays, ultraviolet rays, visible light rays or infrared radiation?
Make a table based on forms of energy and corresponding devices:
| Forms of Energy | Devices | |
| a. | Electric | _________ |
| b. | Mechanical | Sewing machine, Bicycle |
| c. | Thermal | __________ |
| d. | _________ | Solar cooker, Solar heater |
The potential difference available from a solar cell depends on its area.
What is the disadvantage of solar energy?
Kamuthi solar power project is situated in ______ district in Tamil Nadu.
______ is considered as a great source of energy.
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
