Important Question with solution
Question: How is the path of light?
Answer: The path of light is straightforward i.e. that it travels in a straight line.
Question: Give an example of a luminous object.
Answer: Candle
Question: What happens when there is no light?
Answer: When light is not there, we will not be able to see anything.
Question: Why do not we see any object kept in the dark room?
Answer: There is no light in the dark room, so we do not see any object kept in it.
Question: What kinds of objects form shadow?
Answer: Opaque objects.
Question: What is the use of the camera in the pin hole?
Answer: The pin hole camera is used to see the image of an object.
Question: Why should not we see the reflection of the Sun or the Sun light directly?
Answer: We should not see the reflection of the sun or the sun light directly, because the radiation coming with the sunlight can make our eyes impaired.
Question: Give an example of pin hole camera created in the nature.
Answer: When light passes through the leaves of trees, then the sunlight spots appear under the tree. The hole in which the light turns out, acts like pin hole camera.
Question : What is the reflection of light?
Answer: When the ray of light strikes a smooth opaque surface of an object, then it turns back and goes back to the direction from which it comes is called reflection of light.
Question: Give an example of an object that reflects the light?
Answer: Mirror