{"id":1874,"date":"2024-05-13T09:50:35","date_gmt":"2024-05-13T08:06:16","guid":{"rendered":"https:\/\/experiments.school\/?post_type=product&#038;p=1874"},"modified":"2024-05-13T10:06:16","modified_gmt":"2024-05-13T08:06:16","slug":"197-multiple-reflection","status":"publish","type":"product","link":"https:\/\/experiments.school\/en\/product\/197-multiple-reflection\/","title":{"rendered":"197 &#8211; Multiple Reflection"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<h2><span data-contrast=\"auto\">Introduction to:<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">Reflection<\/span><\/li>\n<li><span data-contrast=\"auto\">Transmission<\/span><\/li>\n<li><span data-contrast=\"auto\">Refraction\u00a0 <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n[video width=\"1440\" height=\"1440\" mp4=\"https:\/\/experiments.school\/wp-content\/uploads\/2024\/05\/197-video-end.mp4\"][\/video]\n<p>&nbsp;<\/p>\n<h2><span data-contrast=\"auto\">Material:\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">Safety note: Risk of damage to the retina, therefore use LASERs with low radiation power. Never work without LASER safety glasses!)\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Mirror (with a glass plate as thick as possible, thickness at least 5 mm)\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Projection surface (e.g. white sheet of paper)\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span data-contrast=\"auto\">Instructions:<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">Light up the mirror with the laser pointer at an angle of about 30\u00b0-45\u00b0. Observe the safety advice!\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Capture the glow on a projection screen perpendicular to it.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span data-contrast=\"auto\">Observation:\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">We can see at least three points of light on the projection surface, the second from above is the brightest.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span data-contrast=\"auto\">Explication:<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">Schematic drawing:<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/experiments.school\/wp-content\/uploads\/2024\/05\/197-SchemazeichnungProduktbild.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1867\" src=\"https:\/\/experiments.school\/wp-content\/uploads\/2024\/05\/197-SchemazeichnungProduktbild-300x149.jpg\" alt=\"\" width=\"300\" height=\"149\" srcset=\"https:\/\/experiments.school\/wp-content\/uploads\/2024\/05\/197-SchemazeichnungProduktbild-300x149.jpg 300w, https:\/\/experiments.school\/wp-content\/uploads\/2024\/05\/197-SchemazeichnungProduktbild-768x381.jpg 768w, https:\/\/experiments.school\/wp-content\/uploads\/2024\/05\/197-SchemazeichnungProduktbild-620x308.jpg 620w, https:\/\/experiments.school\/wp-content\/uploads\/2024\/05\/197-SchemazeichnungProduktbild.jpg 995w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<ul>\n<li><span data-contrast=\"auto\">1 glass plate of the mirror\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">2 mirrored underside of the glass plate\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">3 Top of the glass plate\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">4 incident light beam (LASER)\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">5 Beam reflected directly on the glass plate\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">6 beam reflected at the mirror and refracted twice\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">7 beam reflected twice at the mirror\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">The top light point 5 is created by the reflection at the top of the glass plate of the mirror. The brightest light point 6 is caused by reflection on the mirrored underside of the glass plate. The light is refracted twice, when entering and exiting the glass. The third light point 7 is created by a single reflection from the inside at the top of the glass plate of the mirror and a renewed reflection at the mirrored underside.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Any other visible points of light are caused by multiple reflections on the mirror and on the glass surface.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n","protected":false},"featured_media":1876,"template":"","meta":[],"product_brand":[],"product_cat":[963,966,875],"product_tag":[],"class_list":{"0":"post-1874","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-2-reflection","7":"product_cat-3-refraction","8":"product_cat-c-optics","9":"","10":"woocommerce-text-align-left","11":"woocommerce-image-align-center","13":"first","14":"instock","15":"shipping-taxable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product\/1874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/media\/1876"}],"wp:attachment":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/media?parent=1874"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_brand?post=1874"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_cat?post=1874"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_tag?post=1874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}