A ray passing through the centre of curvature of a spherical mirror after reflection returns along the same path. Why?
Answers
Answer:
Answer: A ray of light passing through the centre of curvature of a concave mirror retraces its path (gets reflected along the same path), because as the ray of light passes through centre of curvature of a concave mirror it strikes the mirror along the normal i.e. it incidences on to the mirror at 90 degree.
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Answer:
When ray of light passes through the centre of curvature of the spherical mirror it strikes along the normal that means it is incident on mirror at 900. Hence the incident ray coincides with the normal and retraces its path. Therefore angle of incidence = 0 so, According to law of reflection; Angle of reflection = 0, hence the angle of reflection to become zero degrees, thus ray of light retraces its path. Read more on Sarthaks.com - https://www.sarthaks.com/951153/passing-through-centre-curvature-spherical-mirror-after-reflection-returns-along-path