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प्रश्न
Answer the following.
Differentiate between luminous and non-Luminous objects.
उत्तर
Luminous
The bodies which have the light of their own e.g. sun stars, bulb, candle, oil lamp, torch, a lantern.
Non-Luminous
The bodies-which do not have their own light. e.g. moon, chair, table. When light falls on them, they become visible.
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संबंधित प्रश्न
Fill in the blank.
Moon is a .................. body.
What do we call a substance through which we cannot see light? Give an example of such a substance.
Fill in the blank
The Sun and .............. are the natural sources of light.
Write true or false
The stars have no light.
Answer the following.
Write down five man-made sources of light.
Answer the following.
Distinguish between transparent, translucent, and opaque objects.
Write about two everyday situations that tell you that light travels in a straight line.
a) Draw ray diagrams to show how the image is formed using a concave mirror, when the position of object is:
- at C
- between C and F
- between F and P of the mirror.
b) Mention the position and nature of image in each case.
The path of the light is called as ______.
List any five properties of light.
