Page 7 - light energy
P. 7

Types of



                                           ( 2 )                                             Light Sources
                                       Artificial                   Lamp
               Candle
                                        sources





                                       made by  man


                         Torch                              Laser

                                                                                                     ( 1 )

                                                                                                  Natural
                                                                                                  sources






                                                                                 Star           made by GOD             Sun
                                                                                                                     Main source of light
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