Exam-style question
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In Young's double-slit experiment, the fringe spacing can be calculated using the formula for fringe separation. What is the formula used to calculate the fringe spacing?.
- A.fringe spacing = wavelength / distance between slits
- B.fringe spacing = wavelength x distance between slits
- C.fringe spacing = wavelength / distance to screen
- D.fringe spacing = wavelength x distance to screen
Model answer
What a good answer should say
- fringe spacing = wavelength / distance to screen
Explanation
Why this works
The formula for fringe spacing in Young's double-slit experiment is derived from the geometry of the setup, where fringe spacing is directly proportional to the wavelength of light and inversely proportional to the distance from the slits to the screen.
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