All Flashcards
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.
What are the steps of Young's Double-Slit Experiment?
- Coherent light source. 2. Light passes through two narrow slits. 3. Light diffracts and overlaps. 4. Interference pattern observed on screen.
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.