Which of the following are the sources of light?
Sun, Table, Moon, Star, Electric bulb, Firefly, Meteor, Planets, Mirror, Chair
Important Questions on Light, Shadows, and Reflections
Explain how, we are able to see the table lying in a room though it does not give out its own light.
Name three objects which produce their own light.
Some objects do not create their own light but reflect light from other sources. Name such objects that we see by their reflected light.
How can you see the pages of a book that you read at night?
We can see tables and chairs in a room during the daytime. Why can we see them?
Why cannot you see the table and chair in a room when it is dark ?
Choose the transparent, translucent and opaque materials from the following :
Tracing paper, Cardboard, Ground-glass, Clear glass, Water, Air, Brick wall, Aluminium sheet.
State any two observations from everyday life which show that light travels in straight lines.
