{"id":3939,"date":"2023-01-09T10:51:16","date_gmt":"2023-01-09T10:51:16","guid":{"rendered":"https:\/\/7thclass.deltapublications.in\/?page_id=3939"},"modified":"2024-11-22T06:16:02","modified_gmt":"2024-11-22T06:16:02","slug":"s-15-d-playing-with-spherical-mirrors","status":"publish","type":"page","link":"https:\/\/7thclass.deltapublications.in\/index.php\/s-15-d-playing-with-spherical-mirrors\/","title":{"rendered":"S-15.d Playing With Spherical Mirrors"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\">Playing With Spherical Mirrors<\/h2>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\">Key Notes :<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"773\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-31-1024x773.png\" alt=\"\" class=\"wp-image-9456\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-31-1024x773.png 1024w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-31-300x226.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-31-768x580.png 768w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-31-1536x1160.png 1536w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-31-1568x1184.png 1568w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-31.png 1632w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#950808\"><strong>Spherical Mirrors<\/strong><\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Introduction to Spherical Mirrors:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Spherical mirrors are curved mirrors with either a concave or convex shape.<\/li>\n\n\n\n<li>They have a reflective surface on the inside (concave) or outside (convex) of a sphere.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Types of Spherical Mirrors:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list has-large-font-size\">\n<li><strong>Concave Mirror:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Curved inward like the inside of a spoon.<\/li>\n\n\n\n<li>Reflects light inwards towards a focal point.<\/li>\n\n\n\n<li>Used in things like makeup mirrors and telescopes.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Convex Mirror:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Curved outward like the back of a spoon.<\/li>\n\n\n\n<li>Diverges or spreads out light.<\/li>\n\n\n\n<li>Commonly found in car side-view mirrors to provide a wider field of view.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"has-large-font-size\"><strong>Terminology:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Center of Curvature (C):<\/strong> The center of the sphere from which the mirror is cut.<\/li>\n\n\n\n<li><strong>Focal Point (F):<\/strong> The point where all parallel rays either converge (concave) or appear to diverge (convex) after reflecting.<\/li>\n\n\n\n<li><strong>Principal Axis:<\/strong> The imaginary line passing through the center of curvature and the midpoint of the mirror.<\/li>\n\n\n\n<li><strong>Aperture:<\/strong> The diameter of the mirror.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Reflection Rules:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list has-large-font-size\">\n<li><strong>Concave Mirror:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Rays parallel to the principal axis converge at the focal point (F).<\/li>\n\n\n\n<li>Rays passing through the focal point (F) become parallel after reflection.<\/li>\n\n\n\n<li>Rays passing through the center of curvature (C) reflect back on themselves.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Convex Mirror:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Rays parallel to the principal axis appear to diverge from the focal point (F) behind the mirror.<\/li>\n\n\n\n<li>Rays diverging from the focal point (F) appear parallel after reflection.<\/li>\n\n\n\n<li>Rays that strike the mirror reflect outward.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"has-large-font-size\"><strong>Image Formation:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Concave Mirror:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Real and inverted image when the object is beyond the focal point (F).<\/li>\n\n\n\n<li>Virtual and upright image when the object is between the focal point (F) and the mirror.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Convex Mirror:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Always forms a virtual, smaller, and upright image, regardless of the object&#8217;s position.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Mirror Equations:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Concave Mirror:<\/strong>\n<ul class=\"wp-block-list\">\n<li>The mirror equation is 1\/f = 1\/v + 1\/u, where:\n<ul class=\"wp-block-list\">\n<li>f is the focal length.<\/li>\n\n\n\n<li>v is the image distance.<\/li>\n\n\n\n<li>u is the object distance.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Convex Mirror:<\/strong>\n<ul class=\"wp-block-list\">\n<li>For convex mirrors, the focal length (f) is negative.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Magnification (m):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Magnification (m) = Height of Image (hi) \/ Height of Object (ho).<\/li>\n\n\n\n<li>m &gt; 1 for a magnified image, m &lt; 1 for a reduced image, and m = 1 for the same-sized image.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Applications:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Concave mirrors are used in makeup mirrors, telescopes, and satellite dishes.<\/li>\n\n\n\n<li>Convex mirrors are used in car side-view mirrors and security mirrors.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Safety Tips:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Do not direct sunlight onto objects using concave mirrors as they can cause fires due to the concentration of sunlight.<\/li>\n\n\n\n<li>Use safety precautions while handling mirrors to avoid breakage and sharp edges.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/82461\/246\/963\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-71.png\" alt=\"\" class=\"wp-image-6059\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-71.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-71-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-71-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-71-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81734\/061\/584\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-66.png\" alt=\"\" class=\"wp-image-6061\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-66.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-66-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-66-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-66-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Playing With Spherical Mirrors Key Notes : Spherical Mirrors Introduction to Spherical Mirrors: Types of Spherical Mirrors: Terminology: Reflection Rules: Image Formation: Mirror Equations: Magnification (m): Applications: Safety Tips: Let&#8217;s practice!<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"footnotes":""},"class_list":["post-3939","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3939"}],"version-history":[{"count":10,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3939\/revisions"}],"predecessor-version":[{"id":15057,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3939\/revisions\/15057"}],"wp:attachment":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}