When the final path of ray of light after any number of reflections and refractions is reversed, the ray of light .............

Bend away from the normal

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Retraces back its entire path

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Bend towards the normal

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Solution

The correct option is D Retraces back its entire path
When the final path of a ray of light after member of reflections and refractions is reversed, the ray of light retraces back its entire path. This is called principle of reversibility.

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When the final path of ray of light after any number of reflections and refractions is reversed, the ray of light .............

The correct option is D Retraces back its entire pathWhen the final path of a ray of light after member of reflections and refractions is reversed, the ray of light retraces back its entire path. This is called principle of reversibility.

The correct option is D Retraces back its entire path
When the final path of a ray of light after member of reflections and refractions is reversed, the ray of light retraces back its entire path. This is called principle of reversibility.