In a double-slit experiment, if the distance between the slits is increased, what happens to the position of the interference fringes? (2020)

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Q: In a double-slit experiment, if the distance between the slits is increased, what happens to the position of the interference fringes? (2020)

Solution: Increasing the slit separation d decreases the fringe width, causing the fringes to move closer together.

Steps: 6

Step 1: Understand that in a double-slit experiment, light passes through two slits and creates a pattern of bright and dark lines called interference fringes.
Step 2: Know that the distance between the two slits is called 'slit separation' and is represented by 'd'.
Step 3: When the slit separation 'd' is increased, the distance between the slits becomes larger.
Step 4: Realize that increasing 'd' affects the fringe width, which is the distance between adjacent bright or dark fringes.
Step 5: Understand that a larger slit separation means the fringes will be closer together, resulting in a smaller fringe width.
Step 6: Conclude that as the slit separation increases, the interference fringes move closer together.