Question
Draw the intensity pattern for single slit diffraction and double slit interference. Hence, state two differences between interference and diffraction patterns.
✓
Answer
| Interference | Diffraction |
| All maxima have equal intensity. | Maxima have different (/rapidly decreasing) intensity. |
| All fringes have equal width. | Different (/changing) width. |
| Superposition of two wavefronts. | Superposition of wavelets from the same wavefront. |
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