Gourav, a student of class X using a mirror brought sunlight in the form of a sharp spot of
light on a black paper. The black paper begins to burn after some time.
(i) Name the type of mirror used by Gourav.
(ii) Draw the ray diagram to show the spot of light on the black-paper.
(iii) Why paper begin to burn?
(iv) What is the distance between the mirror and spot of light?
(v) Write mirror formula.
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On a hot sunny day, you are walking on the road and you see the shadow of yours behind you. How is the shadow formed? When exactly is the shadow formed? Can you see the shadow in total darkness too? Let us find answers to these questions and study more about shadows
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