Diffused reflection takes place through a) metal b)glass c)wood d)thin transparent sheet

Diffused reflection takes place through
a) metal b)glass c)wood d)thin transparent sheet
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Answer :

c)wood
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Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle? ∙ A. less than ∙ B. greater than ∙ C. equal to ∙ D. zero

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Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle? ∙ a. Less than ∙ b. Grater than ∙ c. Equal to ∙ d. Zer

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Last Answer : Air layer between two shirts behaves like insulating media