Q. For all substances the absorptivity must lie between

(A) 0 and + 0.5
(B) ?1 and +1
(C) ?0.5 and + 0.5
(D) 0 and 1

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✅ Correct Answer: (D) 0 and 1

Published by Mr. Dubey ⭐ 109.99K Points at 20-Sep-2023 12:31 pm in Heat Transfer

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