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Two coherent sources are 0.18 mm apart a...

Two coherent sources are `0.18 mm` apart and the fringes are observed on a screen 80 cm away. It is found that with a certain monochromatic source of light, the fourth bright fringe is situated at a distance of `10.8 mm` from the central fringe. Calculate the wavelength of light.

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To solve the problem, we will use the formula for the position of the nth bright fringe in a double-slit interference pattern: \[ y_n = \frac{n \lambda D}{d} \] Where: - \( y_n \) is the distance of the nth bright fringe from the central maximum, ...
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