Question

Name a device which works on the principle of reflection of light. Explain its working

Answer 1

solar cooker is based on the principle of reflection of light

* solar cooker is a device which is used to cook food by utilizing the heat radiation coming from the sun.

working of solar cooker

1) Glass possesses the property of selective transmission of heat radiation

2) A black body is a good absorber of heat radiation

3) A mirror or a polished surface reflects heat radiation according to the law of reflection

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