What is the formula for the fringe width in a double-slit experiment?
Practice Questions
1 question
Q1
What is the formula for the fringe width in a double-slit experiment?
λD/d
d/λD
D/λd
λd/D
The fringe width (β) is given by the formula β = λD/d, where D is the distance from the slits to the screen and d is the distance between the slits.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the formula for the fringe width in a double-slit experiment?
Solution: The fringe width (β) is given by the formula β = λD/d, where D is the distance from the slits to the screen and d is the distance between the slits.
Steps: 5
Step 1: Understand that the double-slit experiment creates patterns of light and dark bands called fringes on a screen.
Step 2: Know that the fringe width is the distance between two adjacent bright or dark fringes.
Step 3: Identify the variables in the formula: λ (lambda) is the wavelength of the light used, D is the distance from the slits to the screen, and d is the distance between the two slits.
Step 4: The formula for fringe width (β) is β = λD/d.
Step 5: Use this formula to calculate the fringe width if you know the values of λ, D, and d.
