Indian Astronomers have found a new method to understand the atmosphere of extrasolar planets. They have shown that planets going around stars other than the Sun can be studied by observing the polarisation of light and studying polarisation signatures.<\/span><\/p>\n Light is a transverse wave. It vibrates up and down as it travels forwards. But \u2018up\u2019 and \u2018down\u2019 are not fixed directions. The vibrations could be vertical, horizontal or at any angle in between.\u00a0<\/span><\/p>\n However, Polarised light is made up of waves with vibrations at only one angle.<\/span><\/p>\n Light can be polarised by passing it through a polarising filter. A polarising filter has all its molecules aligned in the same direction. As a result, only waves with vibrations aligned in the same direction can pass through.<\/span><\/p>\n Since only a small selection of the waves can pass through a polarising filter, the overall intensity of the light is reduced. <\/span><\/p>\n For example, sunglasses can be polarised to reduce brightness and glare without compromising the vision.<\/span><\/p>\n Source:<\/b> \u00a0<\/span>This post is based on the article <\/span>\u201c<\/b>Indian Astronomers find new method to study environment of extrasolar planets using polarisation of light<\/b>\u201d <\/b>published in <\/span>PIB <\/b>on <\/span>3rd November 2021.<\/b><\/p>\n","protected":false},"excerpt":{"rendered":" What is the News? Indian Astronomers have found a new method to understand the atmosphere of extrasolar planets. They have shown that planets going around stars other than the Sun can be studied by observing the polarisation of light and studying polarisation signatures. What is polarised light? Light is a transverse wave. It vibrates up… Continue reading Indian Astronomers find new method to study environment of extrasolar planets using polarisation of light<\/span><\/a><\/p>\n","protected":false},"author":10317,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,1738,9],"tags":[],"class_list":["post-144951","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-science-and-technology-daily-factly-articles","category-public","entry"],"jetpack_featured_media_url":"","views":{"total":0,"cached_at":"","cached_date":1704834153},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/144951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10317"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=144951"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/144951\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=144951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=144951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=144951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What is polarised light?<\/b><\/h5>\n
How is light polarised?<\/b><\/h5>\n