Physics
Grade-10
Easy
Question
In case of refraction through a convex lens, the emergent ray is _____ to the incident ray.
- Parallel to
- Not parallel to
- Perpendicular to
- All of these
Hint:
Refraction through a lens changes the direction of the ray of emergence from the direction of incidence.
The correct answer is: Not parallel to
In case of refraction through a convex lens, the emergent ray is not parallel to the incident ray.
- Refraction refers to the bending of rays in a denser medium.
- When the ray is refracted through a lens, the refraction changes the direction of the ray from the direction of incidence.
- Thus, the emergent ray that comes out of the lens won't be parallel to the incident ray.
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