[vc_row][vc_column][vc_column_text]Description[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Modern LEDs (light emitting diodes) cover the range from deep blue (440 nm) to infra-red (940 nm). By monitoring the voltage at which each LED just begins to emit light a graph of energy input as a function of light emitted frequency can be plotted and an approximate value of Planck\u2019s constant deduced. Complete with viewing tube but without power supply.<\/p>\n","protected":false},"featured_media":74180,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[181],"product_tag":[],"_links":{"self":[{"href":"https:\/\/adarshinternational.com\/wp-json\/wp\/v2\/product\/74179"}],"collection":[{"href":"https:\/\/adarshinternational.com\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/adarshinternational.com\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/adarshinternational.com\/wp-json\/wp\/v2\/comments?post=74179"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/adarshinternational.com\/wp-json\/wp\/v2\/media\/74180"}],"wp:attachment":[{"href":"https:\/\/adarshinternational.com\/wp-json\/wp\/v2\/media?parent=74179"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/adarshinternational.com\/wp-json\/wp\/v2\/product_cat?post=74179"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/adarshinternational.com\/wp-json\/wp\/v2\/product_tag?post=74179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}