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Question
State differences between interference and diffraction patterns.
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Solution
| Interference Pattern | Diffraction Pattern | |
| 1 | In interference pattern the intensity of dark fringe is completely zero. | In diffraction pattern the intensity of secondary minima is minimum, but not completely zero. |
| 2 | In interference pattern the width of all the interference fringes is equal. | In diffraction pattern the width of central maxima is large, and on increasing distance, the width of maxima decreases. |
| 3 | In interference pattern the intensity of all the bright bands is equal. | In diffraction pattern the intensity of all the secondary maxima is not equal. |
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