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Question

Match the following:

I.Coating solar cooker with black painta. Causes greenhouse effect inside the cookerII.Concave mirrorb. Absorbs more heatIII.Glass sheet covering c.Converge heat at one point


A

I-a, II-b, III-c

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B

I-b, II-c, III-a

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C

I-c, II-b, III-a

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D

I-b, II-a, III-c

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Solution

The correct option is B

I-b, II-c, III-a


Solar cookers use the heat from the sun for cooking food. The functions of different components of the solar cooker are as follows:
1. Glass lid - covers the top and creates greenhouse effect inside the cooker.
2. Black painted surface - the surface of the solar cooker is painted black as black absorbs maximum solar energy. This increases the temperature inside the solar cooker.
3. Plane Mirror - plane mirror as a reflector and reflects more rays inside the cooker.
4. Concave mirror - concave mirrors are provided in the solar cookers for concentrating solar rays at one point. This increase the maximum temperature reached inside the solar cooker.
5. Insulator - an insulator is used to cover the solar cooker from outside so that the heat is not lost to the surroundings.


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