Which of the following best describes the term 'angular width' of a diffraction
Practice Questions
Q1
Which of the following best describes the term 'angular width' of a diffraction maximum?
The distance between two adjacent maxima
The angle subtended by the maximum at the source
The width of the maximum on a screen
The angle between the first minimum and the central maximum
Questions & Step-by-Step Solutions
Which of the following best describes the term 'angular width' of a diffraction maximum?
Correct Answer: The angle between the first minimum on either side of the central maximum.
Step 1: Understand what a diffraction maximum is. It is the bright central spot you see when light passes through a small opening or around an obstacle.
Step 2: Identify the first minimum. This is the first dark spot on either side of the bright central maximum.
Step 3: Measure the angle from the center of the diffraction pattern to the first minimum on one side.
Step 4: Measure the angle from the center to the first minimum on the other side.
Step 5: The angular width is the total angle between these two first minima.
