In huygens' eyepiece,A. The cross wires are outside eyepieceB. Condition for achromatism is satisfied C. condition for minimum spherical aberration is not satisfiedD. the image formed by the objective is a virtual
PDF] Huygens' Principle: Exact wavefronts produced by aspheric lenses. | Semantic Scholar
PDF] Huygens' Principle: Exact wavefronts produced by aspheric lenses. | Semantic Scholar