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en/12.2.7.md
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| + | ### Statement | ||
| + | |||
| + | $12.2.7.$ [Insert the problem statement] | ||
| + | |||
| + | ### Solution | ||
| + | |||
| + | 12.2.7 A plane sinusoidal wave falls on a hole of radius r perpendicular to its plane. | ||
| + | The wavelength is λ ≪ r. The wave intensity along the hole axis changes pe- | ||
| + | riodically. At what distance from its center is the last maximum? Determine | ||
| + | the distance between the intensity maxima at a distance z0 from the center of | ||
| + | 2 | ||
| + | the hole, if rλ ≫ z0 ≫ r. | ||
| + | |||
| + | #### Answer | ||
| + | |||
| + | [Insert a concise answer or boxed result] | ||
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| ### Statement | |||
| $12.2.7.$ [Insert the problem statement] | |||
| ### Solution | |||
| 12.2.7 A plane sinusoidal wave falls on a hole of radius r perpendicular to its plane. | |||
| The wavelength is λ ≪ r. The wave intensity along the hole axis changes pe- | |||
| riodically. At what distance from its center is the last maximum? Determine | |||
| the distance between the intensity maxima at a distance z0 from the center of | |||
| 2 | |||
| the hole, if rλ ≫ z0 ≫ r. | |||
| #### Answer | |||
| [Insert a concise answer or boxed result] | |||