In a double-slit experiment, if the distance between the slits is increased, wha
Practice Questions
Q1
In a double-slit experiment, if the distance between the slits is increased, what happens to the position of the interference fringes? (2020)
Fringes move closer together
Fringes move further apart
Fringes disappear
Fringes remain unchanged
Questions & Step-by-Step Solutions
In a double-slit experiment, if the distance between the slits is increased, what happens to the position of the interference fringes? (2020)
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.
