In a two-slit interference pattern, if the distance between the slits is increased, what happens to the number of visible fringes on the screen?

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Increases
Decreases
Remains the same
Becomes zero

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Q: In a two-slit interference pattern, if the distance between the slits is increased, what happens to the number of visible fringes on the screen?

Solution: Increasing the distance between the slits (d) decreases the fringe width, which in turn reduces the number of visible fringes on the screen.

Steps: 6

Step 1: Understand that in a two-slit interference pattern, light waves from two slits create bright and dark bands called fringes on a screen.
Step 2: Know that the distance between the slits is represented by 'd'.
Step 3: Realize that increasing the distance 'd' between the slits affects the spacing of the fringes.
Step 4: Learn that when 'd' increases, the width of each fringe (the distance between bright or dark bands) decreases.
Step 5: Understand that if the fringe width decreases, it means that the fringes are closer together.
Step 6: Conclude that with the fringes being closer together, there will be fewer visible fringes on the screen within the same distance.

In a two-slit interference pattern, if the distance between the slits is increased, what happens to the number of visible fringes on the screen?

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