A ray of light continues moving along the same path while passing through air-glass interface. What is the angle of incidence ? A) 90 degree B) 30 degree C) 0 degree D) 60 degree
It might be 90 degree bcoz the question is saying that there is no change in the direction of light hence 90 degree should be the answer Regards Aqsa Kibria
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Ayush Singh answered this
Answer must be 90 degree because when a light ray falls normally on th e boundary of medium there would be no refraction