Question

What is the principle of reversibility of light show that the incident ray of light is parallel to emergent ray of light?

Answer 1

HOLA BUDDY....

here is your answer------>>>

the principle of reversibility of light shows that

LIGHT RAYS AFTER REFRACTION OR REFLECTION WHEN REVERSED, WILL RETRACE ITS PATH...

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Answer 2

Show that the incident ray of light is parallel to the emergent ray of light when light falls obliquely on a side of a rectangular glass slab. The principle of reversibility of light states that the light ray after reflection or refraction, when reversed, will retrace its path.