In a double-slit experiment, if the intensity of light at the center of the frin
Practice Questions
Q1
In a double-slit experiment, if the intensity of light at the center of the fringe pattern is I0, what is the intensity at the first minimum?
0
I0
I0/2
I0/4
Questions & Step-by-Step Solutions
In a double-slit experiment, if the intensity of light at the center of the fringe pattern is I0, what is the intensity at the first minimum?
Step 1: Understand the double-slit experiment. It involves light passing through two slits and creating a pattern of bright and dark spots on a screen.
Step 2: Recognize that the bright spots are called maxima and the dark spots are called minima.
Step 3: The center of the fringe pattern is the brightest spot, where the intensity is I0.
Step 4: The first minimum is the first dark spot next to the center, where destructive interference occurs.
Step 5: In destructive interference, the light waves cancel each other out, resulting in no light.
Step 6: Therefore, at the first minimum, the intensity is 0.
