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a ray of light is incident at an angle'a' at a boundary separating two transparent media. Light is transmitted.However if the angle of incidence is increased very slightly ,the ray gets refracted into the incident medium.The difference between the angles by which the incident light is deviated in the first case and that in the second case is A)2'a' B)90(degrees)-'a' C)180(degrees)-'a' D)180(degrees)-2'a'

a ray of light is incident at an angle'a' at a boundary separating two transparent media. Light is transmitted.However if the angle of incidence is increased very slightly
,the ray gets refracted into the incident medium.The difference between the angles by which the incident light is deviated in the first case and that in the second case is
A)2'a'
B)90(degrees)-'a'
C)180(degrees)-'a'
D)180(degrees)-2'a'

Grade:12

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