Mention against each of the following whether regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case
$(a)$. Polished wooden table
$(b)$. Chalk powder
$(c)$. Cardboard surface
$(d)$. Marble floor with water spread over it
$(e)$. Mirror
$(f)$. Piece of paper

AcademicPhysicsNCERTClass 8

$(a)$. Polished wooden table$\rightarrow$ Regular reflection will take place because the surface of wooden table is plane and polished.


$(b)$. Chalk powder$\rightarrow$Diffused reflection will take place because the surface is rough.


$(c)$. Cardboard surface$\rightarrow$Diffused reflection will take place because the surface is rough.


$(d)$. Marble floor with water spread over it$\rightarrow$Regular reflection will take place because the surface is plane and polished.

$(e)$. Mirror$\rightarrow$Regular reflection will take place because the surface is plane and polished.

$(f)$. Piece of paper$\rightarrow$Diffused reflection will take place because the surface is rough.

raja
Updated on 10-Oct-2022 13:25:15

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