Two parallel rays of red and violet colour pa | vedclass

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(D) When a light ray passes through a parallel-sided glass slab,the emergent ray is parallel to the incident ray.In the given figure,ray $1$ is the in

Vedclass · Accepted Answer

$2$ and $5$ are parallel

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(D) When a light ray passes through a parallel-sided glass slab,the emergent ray is parallel to the incident ray.In the given figure,ray $1$ is the incident red ray and ray $5$ is the emergent red ray. Since the glass slab has parallel faces,the emergent ray $5$ is parallel to the incident ray $1$.Similarly,ray $2$ is the incident violet ray and ray $6$ is the emergent violet ray. Thus,the emergent ray $6$ is parallel to the incident ray $2$.Since the incident rays $1$ and $2$ are parallel to each other,all emergent rays ($5$ and $6$) will also be parallel to the incident rays ($1$ and $2$).Therefore,the emergent ray $5$ is parallel to the incident ray $2$ (and $1$).Thus,option $(d)$ is correct.

Two parallel rays of red and violet colour pass through a glass slab. Which of the following is correct?

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