ನೀರಿನಲ್ಲಿ ಬಾಗಿದಂತೆ ಕಾಣುವ ಚಮಚವು ಈ ಕೆಳಗಿನ ಯಾವುದಕ್ಕೆ ಉದಾಹರಣೆಯಾಗಿದೆ?

A spoon looks bent in water because light rays bend as they pass from water into air, which is refraction. Light changes speed when it moves between media of different densities.