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Why do we use black surfaces in solar devices?
  • a)
    because the blackened surface gives less warmth than white
  • b)
    because water in contact with black surface acquires less heat
  • c)
    because black surfaces absorb more heat than unblackened surfaces.
  • d)
    because temperature in the water of blackened surface was found to rise slowly and hence cooks food easily
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Why do we use black surfaces in solar devices?a)because the blackened ...
Black surfaces absorb more radiation, i.e. more photons are converted to heat than lighter colors where the photons bounce off or are re-emitted.The trick for storage is to use a paint that is "black" in the visible spectrum where most of the incident energy is, but "white" in the infrared spectrum so energy doesn't get re-emitted when the panels heat up.
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Why do we use black surfaces in solar devices?a)because the blackened surface gives less warmth than whiteb)because water in contact with black surface acquires less heatc)because black surfaces absorb more heat than unblackened surfaces.d)because temperature in the water of blackened surface was found to rise slowly and hence cooks food easilyCorrect answer is option 'C'. Can you explain this answer?
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Why do we use black surfaces in solar devices?a)because the blackened surface gives less warmth than whiteb)because water in contact with black surface acquires less heatc)because black surfaces absorb more heat than unblackened surfaces.d)because temperature in the water of blackened surface was found to rise slowly and hence cooks food easilyCorrect answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Why do we use black surfaces in solar devices?a)because the blackened surface gives less warmth than whiteb)because water in contact with black surface acquires less heatc)because black surfaces absorb more heat than unblackened surfaces.d)because temperature in the water of blackened surface was found to rise slowly and hence cooks food easilyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why do we use black surfaces in solar devices?a)because the blackened surface gives less warmth than whiteb)because water in contact with black surface acquires less heatc)because black surfaces absorb more heat than unblackened surfaces.d)because temperature in the water of blackened surface was found to rise slowly and hence cooks food easilyCorrect answer is option 'C'. Can you explain this answer?.
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