Physics
Grade-10
Easy
Question
In which of the following cases does the light ray not bend while getting refracted through a spherical lens?
- When it passes through the center of curvature
- When it passes through the focus
- When it passes through the optical center
- All of these
Hint:
The angle of incidence and the angle of emergence both becomes zero, when the ray of light passed through a spherical lens.
The correct answer is: When it passes through the optical center
The ray of light passed through a spherical lens does not bend in refraction when it is passed through the optical center.
- The ray of light passed through a spherical lens does not deviate or bend on refraction when it is passed through the optical center.
- The ray passed through the optical center will be perpendicular to the surface of the sphere.
- As the angle of incident becomes zero, the emerging angle will also become zero and thus, the ray won't bend or deviate in any direction.
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