A ray of light is incident at an angle of 600 on one face of a prism of angle 300. The ray emerging out of the prism makes an angle of 300 with the incident ray. The emergent ray is
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a
Normal to the face through which it emerges
b
Inclined at 300 to the face through which it emerges
c
Inclined at 600 to the face through which it emerges
d
Inclined at 900 to the normal at face through which it emerges