reflection of waves
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9 Terms
what are the three things that can happen to a wave at a boundary between two materials?
reflection, transmission or absorption
when does reflection occur?
when a wave hits a boundary between two media, and doesn’t pass through, but remains in the original medium
what surfaces are most and least reflective? why?
flat is most reflective - smoother the surface, stronger the reflected wave
rough is least reflective - this is because the light is scattered in all directions
what does an opaque surface do to a wave?
they reflect light not absorbed by the material
when does transmission occur?
when waves pass through a substancew
what increase the transmission of light waves through a substance?
the transparency - higher transparency, the more light that will pass through
what may happen to a wave when they pass through a medium? why?
the amplitude may be reduced due to some of the energy being absorbed
what is absorption?
when the energy from the wave is transferred into the particles of a substance
what does reflection, absorption and transmission depend on?
the material that the wave is trying to pass through and wavelength of the wave