All Flashcards
Define constructive interference.
Waves meet in phase, amplitudes add up, resulting in a larger wave. Path difference: , where m = 0, 1, 2...
Define destructive interference.
Waves meet out of phase, amplitudes cancel out, resulting in a smaller wave. Path difference: , where m = 0, 1, 2...
What is diffraction?
The bending or spreading of waves as they pass through an opening or around an obstacle.
Define wavelength.
The distance between two successive crests or troughs of a wave.
Define 'd' in the context of double-slit interference.
'd' represents the distance between the two slits.
What is the effect of increasing the wavelength () in Young's double-slit experiment?
The fringe spacing (x) increases.
What is the effect of increasing the slit separation (d) in Young's double-slit experiment?
The fringe spacing (x) decreases.
What is the effect of increasing the distance to the screen (L) in Young's double-slit experiment?
The fringe spacing (x) increases.
What is the effect of light passing through a narrow slit?
The light diffracts, spreading out after passing through the slit.
What is the effect of using coherent light in Young's double-slit experiment?
A stable and clear interference pattern is produced.
In a double slit experiment diagram, what does 'd' represent?
'd' represents the distance between the two slits.
In a double slit experiment diagram, what does '' represent?
'' represents the angle from the central beam to the fringe.
In a double slit experiment diagram, what does '' represent?
'' represents the wavelength of light.
In a double slit experiment diagram, what does 'x' represent?
'x' represents the distance from the central fringe to the mth fringe.
In a double slit experiment diagram, what does 'L' represent?
'L' represents the distance from the slits to the screen.