What is the Principle of Reversibility?

- a)If the final path of a ray of light is reversed after any number of reflections and refractions, then the ray retraces its entire path.
- b)If the final path of a ray of light is reversed after any number of refractions only, then the ray retraces its entire path.
- c)If the final path of a ray of light is reversed after any number of reflections and refractions, then the ray retraces half of its path.
- d)If the initial path of a ray of light is reversed after any number of reflections only, then the ray retraces its entire path.

Correct answer is option 'A'. Can you explain this answer?

Related Test: Test: Refraction By Plane Surfaces

2 Answers

Jyotsna Gupta
answered
Sep 03, 2018

Note the directions of the arrow.

The beam of light travels back on the same path as it was traveling before the refraction and after the refraction after being encountered by the obstacle in the water.

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Answers of What is the Principle of Reversibility?a)If the final path of a ray of light is reversed after any number of reflections and refractions, then the ray retraces its entire path.b)If the final path of a ray of light is reversed after any number of refractions only, then the ray retraces its entire path.c)If the final path of a ray of light is reversed after any number of reflections and refractions, then the ray retraces half of its path.d)If the initial path of a ray of light is reversed after any number of reflections only, then the ray retraces its entire path.Correct answer is option 'A'. Can you explain this answer? are solved by group of students and teacher of Class 12, which is also the largest student
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What is the Principle of Reversibility?a)If the final path of a ray of light is reversed after any number of reflections and refractions, then the ray retraces its entire path.b)If the final path of a ray of light is reversed after any number of refractions only, then the ray retraces its entire path.c)If the final path of a ray of light is reversed after any number of reflections and refractions, then the ray retraces half of its path.d)If the initial path of a ray of light is reversed after any number of reflections only, then the ray retraces its entire path.Correct answer is option 'A'. Can you explain this answer? over here on EduRev! Apart from being the largest Class 12 community, EduRev has the largest solved
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