Rohan placed a mirror in a bowl filled with water and placed it near the window. He observed that the light after getting reflected from the mirror fall on the wall and a beautiful pattern of colours is formed on the wall. On the basis of above observation answer the following questions.
(a) Name the phenomenon observed in the above case.
(b) Write the cause of the above phenomenon
(c) Show the same phenomenon taking place in a glass prism, with the help of a labelled diagram.
(d) Which colour bends the least and the most when the white light passes through a glass prism.
( e) Where do you see the same phenomenon in the atmosphere /nature.
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Answer:
A. Dispersion
B. The phenomenon which occurred was dispersion because dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency. Media having this common property may be termed dispersive media
C. Answer c is the picture which I uploaded
D. Red , orange, yellow, green , blue, indigo, violet
E. We see this phenomenon when rainbow is formed
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