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
Answers
Explanation:
(a) Polished wooden table - regular reflection
A polished surface is an example of asmooth surface. A polished wooden table has 9- smooth surface.Hence, reflections from the polished table will be regular.
(b) Chalk powder - Diffused reflection
Chalkpowerspread on a surfaceIsan exampleof an irregular surface. It is not smooth. Therefore, diffused reflection will take place
from chalk powder.
(c) Cardboard surface - Diffused reflection
Cardboard surface is also an example of an irregular surface. Hence,diffused reflection will take place from a cardboard surface.
(d) Marble floor with water spread over it - Regular reflection
Marble floor withwaterspreadoveritisan example of a regularsurface.Thisis because water makes the marble surface smooth. Hence, regular reflection will take place from this surface.
(e) Mirror - Regular reflection
Mirror hasa smoothsurface.Therefore, it will give a regular reflection .
(f) Piece of paper - Diffused reflection
Although a piece of paper may look smooth, but it has many irregularities on its surface.Due to this reason, it will give a diffused reflection.
Answer: