The temperature in a spherical reflector type solar cooker is raised to more than 500oC by :
A
concentrating energy at one point by using a concave reflector
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B
proper insulation of the cooker
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C
concentrating energy at one point by using a covex reflector
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D
both (A) and (B)
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Solution
The correct option is A concentrating energy at one point by using a concave reflector The temperature in a spherical reflector type solar cooler is raided to more than 500∘C by concentrating energy at one point by using a concave reflector.