Which of the following is generally considered as opaque surface towards radiations? (A) Gases (B) Solids (C) Liquids (D) Both (B) and (C)

Which of the following is generally considered as opaque surface

towards radiations?

(A) Gases

(B) Solids

(C) Liquids

(D) Both (B) and (C)

by

1 Answer

Answer :

(D) Both (B) and (C)

by

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