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
Answer
|
S.No |
Question |
Reflection Type |
Explanation |
|
(a) |
Polished wooden table |
Regular Reflection |
A polished wooden table has a smooth surface, so the reflection on a polished table will be regular reflection |
|
(b) |
Chalk powder |
Diffused Reflection |
Chalk powder if spread on a surface makes the surface diffused, so the reflection on a chalk powder is diffused reflection |
|
(c) |
Cardboard surface |
Diffused Reflection |
Cardboard surface is not smooth, so the reflection will be a diffused reflection |
|
(d) |
Marble floor with water spread over it |
Regular Reflection |
Marble floor with water spread over it is a smooth reflection. Water makes the marble smooth, so the reflection on the marble floor will be a regular reflection |
|
(e) |
Mirror |
Regular Reflection |
Mirror has a smooth surface, so the reflection on the mirror is a smooth reflection |
|
(f) |
Piece of paper |
Diffused Reflection |
Since the surface of a piece of paper will be rough, it would produce a diffused reflection |
