MCQ
Focal length of a plane mirror is
- AZero
- ✓Infinite
- CVery less
- DIndefinite
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$(A)$ Incident ray and emergent ray are symmetric to the prism
$(B)$ The refracted ray inside the prism becomes parallel to its base
$(C)$ Angle of incidence is equal to that of the angle of emergence
$(D)$ When angle of emergence is double the angle of incidence
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