# A ray of light travels from a medium of refractive index mu to air. Its angle of incidence in the medium is i, meansured from the normal to the bo

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A ray of light travels from a medium of refractive index mu to air. Its angle of incidence in the medium is i, meansured from the normal to the boundary , and its angle of deviation is delta. delta is plotted against i. Which of the following best represents the resulting curve ?
A.
B.
C.
D.

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