Young's Double Slit Experiment Video Lessons

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Problem: The figure shows the interference pattern obtained in a double-slit experiment with light of wavelength λ. Identify the fringe or fringes that result from the interference of two waves whose phases differ by exactly 2λ. 

FREE Expert Solution

In a double-slit experiment, constructive interference is achieved when two waves reach the screen shifted by an integer number of wavelengths ±2λ. 

The waves are in phase at this point.

The amplitudes of the waves add up and the resulting fringe is bright since the intensity of light is at maximum.

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Problem Details

The figure shows the interference pattern obtained in a double-slit experiment with light of wavelength λ. 

Identify the fringe or fringes that result from the interference of two waves whose phases differ by exactly 2λ. 

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