Advertisements
Advertisements
Question
Answer the following.
Differentiate between luminous and non-Luminous objects.
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
Write true or false of the following statement.
A shadow is formed because light travels in a straight-line path.
Fill in the blank.
Light travels in a ................. path.
What do we call an electric bulb producing light?
Why do objects in a room become visible even if sunlight does not enter it?
Does the flame of a gas stove emit light?
Write true or false
The stars have no light.
Answer the following.
Name some sources of light that are not hot.
_______ is the natural source that stimulates sight and makes things visible.
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.
Observe the picture given in the following figure carefully.

A patch of light is obtained at B, when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?
