https://mr.khanacademy.org/science/mh-grade-6-science/x7b6e0e817e3f7b33:light-and-formation-of-shadows/x7b6e0e817e3f7b33:transparent-opaque-and-translucent-objects/e/transparency-and-light-transmission 2026-04-08T08:29:36.136522811Z पारदर्शकता आणि प्रकाशाचे प्रसारण चला, काही प्रश्न सोडवू Shankar R exercise