1) Luminous objects a) Sun b) Books c) Chair d) Plants e) Toys f) Desk 2) Aritifical souresvof light a) Sun b) Moon c) Stars d) Torch e) Firefly f) Don't know 3) Non lumnious object a) Sun b) Toys c) Plants d) Desk e) Book f) Straw 4) Natural sources of light a) Torch b) Led light c) Candle d) Electric bulb e) Tubelights f) Fire-fly 5) Light is not form of energy a) True b) False 6) Light always travel in a straight line a) False b) True 7) Light speed is 3×10890 m/s a) False b) True

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