Physics-
General
Easy
Question
In a Young's double slit experiment, green light is incident on the two slits. The interference pattern is observed on a screen. Which of the following changes would cause the observed fringes to be more closely spaced?
- Reducing the separation between the slits
- Using blue light instead of green light
- Used red light instead of green light
- Moving the light source further away from the slits.
The correct answer is: Using blue light instead of green light
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