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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A ray of light is incident on a plane mirror along a vector ai + bj – ck. The normal on incidence point is along ai + bj – ck. The normal on incidence point is along i + j/root 2. Find a unit vector along the reflected ray.

A ray of light is incident on a plane mirror along a vector ai + bj – ck. The normal on incidence point is along ai + bj – ck. The normal on incidence point is along i + j/root 2. Find a unit vector along the reflected ray.

A woman is standing in front of a plane mirror. What is the minimum mirror height that is necessary for her to see her full image.