Question

A film of air is enclosed between a pair of thin microscope slides and the combination is then inserted in water. A ray of white light is projected through water and the light reflected by the film of a sandwiched between the two slides is received on a screen. If the angle of incidence of the ray on the film is gradually decreased from 90°, the reflected light
(A) Will turn red and then vanish
(B) Will remain white and then vanish
(C) Will remain white at all angles of incidence
(D) Will turn blue and then vanish​

Answer 1

(c) because the light is in the white angles of in incidence

Answer 2

Answer:

C

Explanation:

because the light is in the white angles of in incidence