'प्रकाश का अपवर्तन' क्या है?

उत्तर: (D) प्रकाश का एक माध्यम से दूसरे में जाते समय मुड़ना / Bending of light when passing from one medium to another — Refraction is the bending of light when it passes from one medium to another (e.g., air to water) due to change in speed. Snell's Law: n₁sinθ₁ = n₂sinθ₂. Examples: pencil appearing bent in water, mira...