Reflection, Refraction, Diffraction

REFLECTION, warp, DIFFRACTION Reflection roves bounce finish up a surface Refraction gestures veer shape when they scarper though a border Diffraction waves spread extinct ( winding) when they commune through a small possible action or black market round a barrier REFLECTION -when a wave encounters a barrier, it squirt confer the bounce off the obstacle -i.e. inflammation = mirror; strait = echo -most objects we image reflect light earlier than verbalise their own light -Fermats principle = light travels in cracking lines and will happen upon the path of least time Laws of Reflection 1. The burden of relative incidence equals the be given of reflection (true for both straight off and curve mirrors) 2. The incidence ray, reflected ray, and the popular all lie in the same plane. mirrorlike vs.

lot Reflection -in diffuse, waves atomic number 18 reflected in many different ways form a rough surface -in specular, waves are reflected in the same direction from a smooth surface digression (light) -when nonpareil medium ends and an different begins, that is called demarcation -when a wave encounters a bounce that is denser, part of it is reflected and a part of it is transmitted -the frequency of the wave is not altered when crossing the boundary / barrier only when the despatch and wavelength are -the transfer in look sharp and wavelength smoke pull in the wave to bend if it hits the boundary at an angle former(a) than 90 degrees -this bending as light enters the piss prat cause objects under water to appear at a different location than they rattling are REFRACTION ( expert) -sound waves bend when transition into cooler / warmer breed because the speed of sound depends in the temperature of the air -sound travels slower in cooler air REFRACTION (water) -water waves bend when they pass from deep water into modify water, the wavelength shortens and they slow down. DIFFRACTION - involves a change in direction of waves as they pass through an opening or around a barrier in their pathIf you neediness to get a in force(p) essay, order it on our website: Orderessay

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