CAPE Physics Unit 1 · 2012 · Paper 1 · Question Q27
In a double slit experiment using a monochromatic light source of wavelength 400\text{ nm}, the distance between the bright fringes was found to be 8.0\text{ mm}. If the screen is 5\text{ m} from the double slit, what is the slit separation?
- (A)0.001 mm
- (B)0.25 mm
- (C)1 mm
- (D)250 mm
The answer is shown once you've answered.
Practise this question