https://hi.khanacademy.org/science/up-class-10th-science/x5d08d26681869997:the-human-eye-and-the-colourful-world/x5d08d26681869997:defects-of-vision/e/defects-of-vision-in 2026-04-08T08:46:38.570038857Z दृष्टि दोष (Defects of vision) आइए कुछ प्रश्न हल करें! vibhor exercise https://hi.khanacademy.org/science/up-class-10th-science/x5d08d26681869997:the-human-eye-and-the-colourful-world/x5d08d26681869997:defects-of-vision/e/numericals-on-defects-of-vision 2025-04-28T17:46:46.623826708Z दृष्टि दोष पर संख्यात्मक प्रश्न (Numericals on defects of vision) आइए कुछ प्रश्न हल करें! vibhor exercise