Huygens' Principle and the Refraction of Light

Directions: Draw a water glass cup with a plastic straw. Indicate how the Huvgens'r principles manifest in the illustration with the following indicators: (Draw vour answer inside the given box below) 1. a water glass cup with a plastic straw 2. mediums in space {air and water] 3. Incident rev 4. angle of incidence 61 and angle of refraction 82 5. manifestations of Huvgens' principle in Wave refraction 6. A primarv spreading-out wavefront, A, A' 3'. A new, secondary wavefront, B, 3. The direction of wavefront propagation