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What kind of mirror-concave, convex or p...

What kind of mirror-concave, convex or plane-would be best suited for use in a solar cooker ? Why ?

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A concave mirror is used in a solar cooker as it uses heat of the sunlight to cook food. The mirror focuses all the incident sunlight at a point. The temperature at that point increases, thereby cooking and heating the food placed at that point.
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NCERT-SOURCES OF ENERGY-Exercise
  1. Why are we looking at alternate sources of energy ?

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  2. How has the traditional use of wind and water energy been modified for...

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  3. What kind of mirror-concave, convex or plane-would be best suited for ...

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  4. What are the limitations of enegry that can be obtained from the ocean...

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  5. What is geothermal energy ?

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  6. What are the advantages of unclear energy?

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  7. Can any source of energy be pollution-free ? Why or why not ?

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  8. Hydrogen has been used as a rocket fuel. Would you consider it a clean...

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  9. Name two energy sources that you would consider to be renewable. Give ...

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  10. Give the names of two energy sources that you would consider to be exh...

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  11. A solar water heater cannot be used to get hot water on : (a) a sunn...

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  12. Which of the following is not an example of bio-mass energy source ? ...

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  13. Most of the sources of energy we use represent stored solar energy. Wh...

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  14. Compare and contrast fossil fuels and the sun as sources of energy.

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  15. Compare and contrast bio-mass and hydro-electricity as sources of ener...

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  16. What are the limitations of extracting enegry from : (a) the wind ...

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  17. On what basis would you classify energy sources as : (a) renewable a...

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  18. What are the qualities on an ideal source of energy ?

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  19. What are the disadvantages of using a solar cooker ? Are there places ...

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  20. What are the environmental consequences of the increasing demand for e...

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