waves and refraction of light Flashcards
(22 cards)
reflection
a wave bouncing off a plane surface, be it a wall, a mirror
or an interface between two substances.
refraction
a change in the direction of a wave when it travels between two
materials of different density.
diffraction
the process in which a beam of light or waves spread out after traveling through a narrow path
wave
transfers energy through a medium without the movement of matter.
2 types of wave
-Transverse wave
-longitiduinal wave
transverse wave
oscillate in a direction perpendicular to the direction of energy transfer
longitiduinal wave
oscillate in the same direction as energy transfer
transverse wave example
light and water wave
longitiduinal wave example
sound wave
amplitude
the distance between the amplitude and the peak(highest point of a wave)
higher amplitude sound are?
louder and more energy
wavelenght
distance between a peak of a wave and the next peak
lower the wavelenght of wave?
higher energy
frequency
number of peak or trough that pass through a certain point each second
higher the frequency?
higher energy
equation of wave
v = fλ
refraction occurs because of?
a change in speed of wave
higher the density of a medium?
the slower light travels
how does wave undergo reflection at a plane surface
when a wave encounters a plane surface,it bounces back from the surface
how does wave lenght affect diffraction?
longer wave lenght lead to greater diffraction/shorter lead to smaller diffraction
material with low density to high density
bend toward the normal line
material with high density to low density
bend away from the normal line
