9702/52/F/M/18: A student is investigating monochromatic light passing through a double slit. Bright and dark fringes are produced on a screen as shown in Fig. 2.1.
The distance w between 10 bright fringes is measured. The fringe spacing P between neighbouring bright fringes is then determined.
The experiment is repeated for light of different wavelengths \(\lambda \).
It is suggested that the fringe spacing P and the wavelength \(\lambda \). are related by the equation
\(\dfrac{P}{D} = \frac{\lambda}{s} \)
where D is the distance from the double slit to the screen and s is the slit separation.
Paper 5 variant 2 Question 2 February/March data analysis with gradient, y-intercept, and uncertainty.
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