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List any five properties of light. |
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Answer» Solution :(i) Light is a form of energy . (ii) Light always TRAVELS along a STRAIGHT line. (iii) Light does not need any medium for its propagation . Itcan even travel through VACUUM. (iv) The speed of light in cacuum or air is , `c=3xx10^(8)MS^(-1)`. (v) Since , light is in the form of waves , it is characterized by a wavelegth`(lambda)` and a frequency (v) , which are ralated by the following equation : `c=vlambda` (c- velocity of light). |
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