In a double-slit experiment, if the distance between the screen and the slits is

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Question: In a double-slit experiment, if the distance between the screen and the slits is increased, what happens to the fringe separation?

Options:

Correct Answer: It increases

Solution:

Fringe separation is directly proportional to the distance from the slits to the screen; increasing this distance increases fringe separation.

In a double-slit experiment, if the distance between the screen and the slits is increased, what happens to the fringe separation?

In a double-slit experiment, if the distance between the screen and the slits is increased, what happens to the fringe separation?

Step 1: Understand what the double-slit experiment is. It involves light passing through two slits and creating a pattern of bright and dark lines (fringes) on a screen.
Step 2: Identify the key components: the slits (where light passes through) and the screen (where the pattern appears).
Step 3: Recognize that fringe separation refers to the distance between the bright or dark lines on the screen.
Step 4: Note that the distance from the slits to the screen can be changed. This is the distance we are focusing on.
Step 5: Understand the relationship: as the distance from the slits to the screen increases, the fringes spread out more, meaning the separation between them increases.
Step 6: Conclude that increasing the distance from the slits to the screen results in greater fringe separation.

Double-slit experiment – A fundamental experiment in quantum mechanics demonstrating the wave-particle duality of light and matter, where light creates an interference pattern when passing through two closely spaced slits.
Fringe separation – The distance between adjacent bright or dark spots in the interference pattern, which is influenced by the distance from the slits to the screen and the wavelength of the light used.
Proportionality – Understanding the relationship between variables, specifically how changes in one variable (distance to screen) affect another (fringe separation).