{"id":64,"date":"2016-05-06T13:26:36","date_gmt":"2016-05-06T13:26:36","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/?page_id=64"},"modified":"2017-04-18T14:17:01","modified_gmt":"2017-04-18T14:17:01","slug":"waves","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/waves\/","title":{"rendered":"Waves"},"content":{"rendered":"<p style=\"text-align: center\"><strong><u>WAVES <\/u><\/strong><\/p>\n<p>&nbsp;<\/p>\n<ol>\n<li>The equation of a travelling wave is y = 0.2sin\u03c0(6t \u2013 40x)<\/li>\n<\/ol>\n<p>(y and x in metres and t in seconds), for this wave find:<\/p>\n<p>(a) the amplitude.<\/p>\n<p>(b) the frequency.<\/p>\n<p>(c) The wavelength.<\/p>\n<p>(d) the speed.<\/p>\n<p>(e) The phase relationship between two points on the wave 10cm apart.<\/p>\n<p>&nbsp;<\/p>\n<p>2. In a wedge interference experiment two glass slides of length 8.0cm are placed in contact at one end and the other ends are\u00a0separated by a thin piece of paper. When the wedge is illuminated with light of wavelength 500nm, fringes with a separation of 0.80mm are observed.\u00a0Calculate the thickness of the piece of paper.<\/p>\n<p>&nbsp;<\/p>\n<p>3. A lens is coated with a transparent substance of refractive index 1.40. Calculate the minimum thickness required to produce destructive interference of green light of wavelength 540nm.<\/p>\n<p>&nbsp;<\/p>\n<p>4. Two parallel slits with a separation of 200\u03bcm are illuminated by monochromatic light of wavelength 480nm. Fringes with a separation of 3.6mm are produced on a nearby screen. Calculate the distance from the slits\u00a0to the screen.<\/p>\n<p>&nbsp;<\/p>\n<p>5. A beam of light travelling in air is plane polarised on reflection from water of refractive index 1.33. Find:<\/p>\n<p>(a) The polarising angle.<\/p>\n<p>(b) The angle of refraction for the light in water.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>WAVES &nbsp; The equation of a travelling wave is y = 0.2sin\u03c0(6t \u2013 40x) (y and x in metres and t in seconds), for this wave find: (a) the amplitude. (b) the frequency. (c) The wavelength. (d) the speed. (e) The phase relationship between two points on the wave 10cm apart. &nbsp; 2. In a &hellip; <a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/waves\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Waves<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":6460,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-64","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/wp-json\/wp\/v2\/pages\/64","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/wp-json\/wp\/v2\/users\/6460"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/wp-json\/wp\/v2\/comments?post=64"}],"version-history":[{"count":9,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/wp-json\/wp\/v2\/pages\/64\/revisions"}],"predecessor-version":[{"id":129,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/wp-json\/wp\/v2\/pages\/64\/revisions\/129"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/advancedhigher\/wp-json\/wp\/v2\/media?parent=64"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}