1.

Consider a common mirage formed by super-heated air just above a roadway.A truck driver is in mediumofmu=1.0003looks forwards .He ooreceives the illustion of a patcj of water ahead on the road where his line of sight makes an angle of 1.20^(@)below the horizontal .Find the index of refraction of the air just above the road surface.(Hint Treat this as a problem in total internal reflection).

Answer»

`1.00006`
`1.0001`
`1.00008`
NONE of these

Answer :C


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