Physics, 20.03.2020 18:12 talainalover23

In a double slit experiment, green light is incident on the two slits. The interference pattern is observed on the screen. Which one of the following changes would cause the fringes to be more closely spaced (so also more of them)?
1. Reducing the separation between the slits.
2. Using blue light instead of green lights.
3. using red light instaed of green lights
4. Moving the light source away from the slits.

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In a double slit experiment, green light is incident on the two slits. The interference pattern is o...