Suppose you knew the distance of the first minimum from the central maximum on a

Question

Suppose you knew the distance of the first minimum from the central maximum on a viewing screen. What else would you need to know in order to calculate the wavelength of the light making the pattern? Write down the equation for the intensity maxima (constructive interference) of a double-slit interference pattern. If you knew how far apart the maxima were, what else would you need to know in order to calculate the wavelength of the light making the pattern? The object of this lab is to measure a single-slit diffraction pattern (part A) and a double-slit interference pattern (part B), and use those measurements to infer the wavelength of a laser.

Explanation / Answer

4.

We need following quantities to calculate the wavelength of the light:

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