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To study the structure and working of a ...

To study the structure and working of a solar cooker and/or water heater.
Activity is done for understanding how the solar equipments are insulated and how does maximum heat absorption is ensured.

Property : A black surface absorbs more heat.
Structure :
`rarr` It consists of an insulated metal box or a wooden box which is painted black from inside.
`rarr` The box has a thick glass sheet as a cover over the box.
`rarr` A plane or concave mirror is attached to the box that acts as a reflector.
`rarr` Mirror focuses the rays of the sun into the box.
State the advantages and limitations of using the solar cooker or solar water heater.

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To study the structure and working of a solar cooker and/or water heater. Activity is done for understanding how the solar equipments are insulated and how does maximum heat absorption is ensured. Property : A black surface absorbs more heat. Structure : rarr It consists of an insulated metal box or a wooden box which is painted black from inside. rarr The box has a thick glass sheet as a cover over the box. rarr A plane or concave mirror is attached to the box that acts as a reflector. rarr Mirror focuses the rays of the sun into the box. Why is a glass sheet used ?

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To study the structure and working of a solar cooker and/or water heater. Activity is done for understanding how the solar equipments are insulated and how does maximum heat absorption is ensured. Property : A black surface absorbs more heat. Structure : rarr It consists of an insulated metal box or a wooden box which is painted black from inside. rarr The box has a thick glass sheet as a cover over the box. rarr A plane or concave mirror is attached to the box that acts as a reflector. rarr Mirror focuses the rays of the sun into the box. What temperature is achieved in solar cooker/solar water heater ?

Distinguish between : Solar Cooker and Solar Cell Panel

Answer the following questions : (1) On which principle does the solar cooker work? (2) State the two advantages of using the solar cooker. (3) State the two limitations of using the solar cooker.

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Answer the questions : On which principle does the solar cooker work ?

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