Last Sunday Girish’s mother, Priyanka was preparing the dinner in her kitchen for Girish and his father. Both of them were feeling so much hungry and they sat ideally on their respective chairs and having empty plates and spoons on their dinning table. They were shouting like a 5 years old child that they wanted the dinner so much eagerly in order to fulfil their stomach. At the sometime, Girish’s mother served the cooked food to both of them and the moment, when Girish was just about to eat the rice with the help of spoon, he noticed that the spoon has such a shining surface that it reflected the light rays incident on it.
(a) Explain the importance of shining surface in the reflection of light.
(b) Name the type of spherical mirror represented by the shining steel spoon.
(c) Mention the values shown by Priyanka here towards her family. [Value Based Question]
Answers
Answer:
(a) The shining surface absorbs very less light and reflects most of the light. Hence, reflection easily takes place.
(b) The inner surface of the spoon acts as a concave mirror and the outer surface of the spoon acts as a convex mirror.
(c) Caring
Answer:
a) Shiny surfaces have no irregularities and hence, properly reflect light leading to the formation of a clear image.
b) The front side of a shining steel acts as a concave mirror.
The back side of the spoon acts like a convex mirror.
c) Priyanka exhibits the qualities of a caring person.
Explanation:
a) Rough surfaces have irregularities and therefore absorb most of the light falling on the surface. Also, they reflect light in many directions leading to the formation of an unclear image. Shiny surfaces on the other hand, lead to the formation of a clear image.
b) The front side of a shining steel spoon i.e. the side that holds food acts as a concave mirror while the back side of the spoon acts like a convex mirror.
c) Priyanka exhibits the qualities of a caring person as she is cooking food and serving her family.