Answers

2015-10-18T12:36:52+05:30
The beautiful world around us is useless if we are not able to see. we see things with our eyes. it is visible to us due to light. if u enter a dark room ,the objects present in the room are not visible .however if u switch on the bulb, everything in the room becomes visible .why?the bulb gives out light .when this light falls on the object in the room it is reflected from its surface of the object.
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no! i haven't copied from net......
if u have so much dobut check it in the net.....
will not get the answer which i have written...
no yaar the thing which was written in book was copied from net
ooh...sorry.....
2015-10-20T15:47:16+05:30
Light is one of most imporatant chapter of physics ...light travells in a straight line .and it differs when it moves from one medium to other medium ..the speed of alight ray is the highest and its a physical quantity .....light is a kind of wave .there are 7 kinds of lights they are VIBJYOR
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