Page 2 - Competency Based Worksheet- Light and its associated phenomena
P. 2

9.    The picture shows a light ray from a candle falling on a mirror. Points P, Q, R, S, and
                    T are marked behind the mirror.

                        a)  Which arrow represents the light ray
                           reflected by the mirror?
                              i)  Arrow 1
                              ii)  Arrow 2
                              iii)  Arrow 3
                              iv)  Arrow 4
                        b)  At which point will the image of the
                           candle form?
                        c)  Will the image be erect or inverted?






               10.   Which of these statements is true for the reflection of light rays?
                    Circle Yes or No for each statement.









               11.   How many times is a light ray reflected in a periscope?


















                        a)  Once
                        b)  Twice
                        c)  Thrice
                        d)  Four times
               12.















                    What can be concluded from the picture of the spinning Newton’s disc?
                        a)  All discs are multi-coloured.
                        b)  All spinning objects appear white.
                        c)  Objects lose their colour when spinning.
                        d)  White is a mixture of seven different colours.
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