State any two observations from everyday life which show that light travels in a straight line
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1st- when there is a small hole in a room light
comes only in a straight direction.
2nd-when we lit a torch.we take a cardboard and make a hole in it.we puttorch in front of the hole then we will see that light travells in straight direction.
comes only in a straight direction.
2nd-when we lit a torch.we take a cardboard and make a hole in it.we puttorch in front of the hole then we will see that light travells in straight direction.
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17
Formation of shadow:
Shadow are formed when some light rays continue to travel in straight lines while other rays are stopp8by an object.
Shadow are formed when some light rays continue to travel in straight lines while other rays are stopp8by an object.
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