Luminous and Non-Luminous Objects
Luminous and Non-Luminous Objects: Overview
This topic defines the terms luminous and non-luminous objects. Luminous objects are the sun, the stars, a lighted electric bulb, etc., and the non-luminous objects are people, animals, birds, plants, etc.
Important Questions on Luminous and Non-Luminous Objects
The object through which we can see clearly is called _____ object.
Name three luminous objects
Name one material that allows only some light to pass through it.
(Choose from: Glass sheet/ Mirror/ Wax paper)
Name the term used for an object that gives out its own light. (luminous object/non-luminous object)
Juhi was sitting in her drawing room enjoying the activities of the squirrels in her garden. The doors and windows of the room were closed. Can you tell the material from which the door is made of?
We can see through a glass. In our daily activities, what value can we learn from this property of glass?
We can see through a glass. How can we see through a glass?
How do we get moonlight when the moon is a non-luminous object?
What is meant by translucent material?
Name three opaque materials.
Which of the following is not a translucent object?
Match the following:
| Column A | Column B |
| Transparent | (a) Travels in a straight line |
| Translucent | (b) Butter paper and tissue paper |
| Light | (c) Dark |
| Shadow | (d) Air and glass |
A piece of glass is an example of _____ material.
The sun is a _____ object..
(non-luminous/luminous)
Which of the following is a non-luminous body?
How do we see non-luminous objects?
Why are we unable to see anything in a dark room?
Which of the following is a non-luminous object?
Which of the following is a translucent object?
