1) The further object to the light source has the..............shadow. 2) A tool used to separate white light into seven spectrum colours. 3) The materials which allow some of light to pass through. 4) An example for an opaque object. 5) An example for the natural sources of light. 6) A form of energy. 7) What is meant by the visible spectrum. 8) The only form of energy that can be seen. 9) What is meant by shadow? 10) G.R.: Shadow of an opaque body is formed when light falls on it. 11) What is the colour that lies between blue and violet? 12) Mention the seven spectrum colours? 13) It is the bouncing (returning back) of light rays when it strikes a reflecting surface. 14) The pencil seems...........when it immersed in a cup of water due to light...............

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