1.

When a ray of light travelling parallel to the principal axis of a concave mirror strikes at the polished surface of mirror, the reflected ray

Answer»

is sent BACK along the same direction
passes through the principal focus of mirror
passes through the centre of curvature of mirror
passes through the pole of mirror

Solution :When a ray of light TRAVELLING parallel to the principal axis of a CONCAVE mirror is incident on a concave mirror, the reflected BEAM passes through its principal focus.


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