interference Flashcards
as the distance from the source increases the curvature of the wave
decreases
in a wavefront diagram what do the solid lines show
peaks
in a wavefront diagram what do the dotted lines show
trough
what happens when a wave is diffracted
it changes direction
the wavefront becomes more curved
how can another person hear something in another room
When one person speaks, the sound waves travel outwards and arrive at the doorway, which acts as a gap.
This means that when the wavefronts pass through the doorway, they will diffract
what is diffraction
the spreading out of waves when they pass through a narrow gap, or aperture
what happens in youngs double split
the light waves pass through each of the slits and spread out, or diffract
what condition is necessary for youngs double slit
each slit must be equal in width to a single wavelength
in YDS what does s mean
split spacing
in YDS what does D mean
distance to the screen
where is the split spacing measured from
the middle of one slit to the middle of the next slit
When two waves meet, we say they…
interfere with each other
What happens when two waves interfere
The waves combine to create a new wave.
When two waves meet and add together at a point, physicists call this process wave
superposition
Constructive interference occurs between two waves when…
the wave peaks of the original waves are perfectly aligned
