Physics · Refraction of light at plane and spherical surfaces, thin lens formula and lens maker formula
A real image of a distant object is formed by a plano-convex lens on its princip
A real image of a distant object is formed by a plano-convex lens on its principal axis. Spherical aberration is :
- A. absent.
- B. smaller, if the curved surfaces of the lens face an object.
- C. smaller, if the plane surface of the lens faces the object.
- D. same, whichever side of the lens faces the object
Step-by-step solution
For a plano-convex lens forming an image of a distant object, spherical aberration is minimized when the curved surface faces the object. This configuration reduces the angle of refraction at the plane surface, minimizing the variation in focal length for marginal rays and thus reducing spherical aberration.
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