What is the main difference between diffraction and interference?

What is the main difference between diffraction and interference?

Step 1: Understand what waves are. Waves can be sound waves, light waves, or water waves.
Step 2: Learn about interference. Interference happens when two or more waves meet and combine together. This can create areas of higher or lower intensity.
Step 3: Recognize that interference requires multiple sources of waves. For example, two speakers playing music can create interference patterns.
Step 4: Now, learn about diffraction. Diffraction occurs when a wave encounters an obstacle or a small opening (aperture).
Step 5: Notice that diffraction causes the wave to spread out after passing through the obstacle or opening.
Step 6: Compare the two: Interference is about waves combining from different sources, while diffraction is about waves spreading out after hitting something.

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