Warning: fopen(/var/www/storage/cache/cache.catalog.language.1766860395): failed to open stream: No space left on device in /var/www/opencart/system/library/cache/file.php on line 49Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 51Warning: fwrite() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 53Warning: fflush() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 55Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 57Warning: fclose() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 59Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/1682863-20-v-opyte-yunga-rasstoyanie-l-ot-schel-1-910x1155.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/1682863-20-v-opyte-yunga-rasstoyanie-l-ot-schel-1-130x165.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: imagewebp(/var/www/opencart/image/cache/catalog/products/1682863-20-v-opyte-yunga-rasstoyanie-l-ot-schel-1-406x516.webp): failed to open stream: No space left on device in /var/www/opencart/system/library/image.php on line 127Warning: fopen(/var/www/storage/cache/cache.catalog.language.1766860395): failed to open stream: No space left on device in /var/www/opencart/system/library/cache/file.php on line 49Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 51Warning: fwrite() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 53Warning: fflush() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 55Warning: flock() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 57Warning: fclose() expects parameter 1 to be resource, bool given in /var/www/opencart/system/library/cache/file.php on line 5920. В опыте Юнга расстояние l от щелей до экрана равно
20. В опыте Юнга расстояние l от щелей до экрана равно 3 м (рис.). Определить угловое расстояние между соседними светлыми полосами, если третья светлая полоса на экране отстоит от центра интерференционной картины на расстоянии 4,5 мм.
20. В опыте Юнга расстояние l от щелей до экрана равно
