![]() ![]() The most amount of diffraction happens when the wavelength is a similar size to the gap. Refraction of Light at a Plane Boundary Between Two Media, Polarization. Task cards are versatile and can be used for centers, scoot games, collaborative. This is a set of 18 task cards that students can use to reinforce their knowledge of reflection, refraction, and diffraction. (a picture would help to explain this)ĭiffraction: Waves spread out as they enter an aperture (gap). In Fraunhoffer diffraction by a narrow slit, a screen is placed at a distance. These task cards are a fun way to introduce or reinforce the Behavior of Waves specifically, reflection, refraction, and diffraction. As it slows down it changes direction, meaning that the angle that it is travelling at changes - the angle becomes closer to the normal. Refraction: When light travels from air into another material (such as glass) at any angle other than normal (perpendicular), it slows down. Remember that in reflection the angle of incidence (this is the angle that the initial wave makes from the normal), is the same as the angle of reflection (the angle that the reflected wave makes from the normal). Reflection: This is when a wave hits a surface (e.g light hitting a mirror) and is bounced back. Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it. On the diagram it is useful to mark on a line for 'normal', this is a straight line that is perpendicular (makes a 90 degree angle) with a surface. It can also be helpful to draw diagrams of each to help you to remember the difference. These are all properties of waves and their definitions are useful to remember for exams. Refraction is when waves, whether physical or electromagnetic, are deflected when the waves go through a substance. ![]()
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