Describe an experiment to show that a light ray bends when it passes from one transparent medium into another transparent medium.
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Answer:
To show - a light ray bends when it passes from one transparent medium into another transparent medium. Experiment - Spread and fix a sheet of white paper on the drawing board. At the centre of paper, place a glass slab XYX'Y' and draw its boundary. ... Ray BC travels from denser to rarer medium and bends away from normal.
=> Theoretical Experiment <=
Note: when barrier cones we have to change our way else tackle that.
Suppose light travels in one medium have constant velocity, entering in another denser medium have to struggle with obstacles/barrier (masses of medium). Since medium can be compared well with mirror, so they reflect at angle to normal. In this way light bends. Their velocity decrease because of density of medium.