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प्रश्न
Complete the following flow chart.
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उत्तर
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संबंधित प्रश्न
Name that part of a box-type solar cooler which allow the sun's heat rays to enter the box but does not allow inside heat to go out.
Explain why, a plane mirror reflector is used in a box-type solar cooker.
Write the uses of 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.
Why is the solar cooker box covered with a glass sheet?
The radiations present in sunlight which make a solar cooker work are:
(a) visible light rays
(b) ultraviolet rays
(c) comic rays
(d) infrared rays
If the solar constant is 1.4 kW/m2 then solar energy recived by 1m2area in one hour is:
(a) 5040 J
(b) 504.0 kJ
(c) 5040 kJ
(d) 5.04 kJ
In a solar water heater, why is the storage tank placed at a higher lever than the solar panel containing coils?
In many applications, solar cells are connected to rechargeable batteries. Why is this so?
Which of the following is used in solar cooker to harvest the solar energy?
a) Solar panels
b) Silicon cell
c) Mirrors
d) Glass lid
Re-write the statement by selecting the appropriate option.
The solar lamp uses the ................... energy.
A silicon solar cell of dimension 1 sq.cm. generates __________ potential difference.
Complete the table.
| Limitations of Solar energy | Limitations of Wind energy |
Solar energy is a renewable energy. How?
Choose the correct statement.
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
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?
