{"id":1744,"date":"2022-11-18T10:00:47","date_gmt":"2022-11-18T04:30:47","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=1744"},"modified":"2022-11-19T09:58:38","modified_gmt":"2022-11-19T04:28:38","slug":"image-formed-spherical-mirror","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/image-formed-spherical-mirror\/","title":{"rendered":"How is the Image Formed by a Spherical Mirror?"},"content":{"rendered":"

How is the Image Formed by a Spherical Mirror?<\/strong><\/span><\/h2>\n

Image formation by Spherical mirror in different cases<\/span><\/strong>
\nIntroduction: <\/strong>From mirror formula, we find that for a mirror of a fixed focal length f, as object distance u changes, image distance n also changes.<\/p>\n

Image Formed by\u00a0Concave mirror<\/strong><\/span><\/h3>\n
    \n
  1. Object at Infinity<\/strong><\/span>
    \nA point object lying on the principal axis. Rays come parallel to the principal axis and after reflection from the mirror actually meet at the focus F.
    \nThe image is formed at F. It is real and point sized (fig.)
    \n\"HowFig. <\/strong>Concave mirror: point object at infinity, image at focus.<\/li>\n
  2. Object Beyond Centre of Curvature<\/strong><\/span>
    \nReal object AB has its image A’B’ formed between focus and centre of curvature. The image is real-inverted and diminished.
    \n\"HowFig. <\/strong>Concave mirror: object beyond centre of curvature, image between focus and centre of curvature.<\/li>\n
  3. Object at Centre of Curvature<\/strong><\/span>
    \nReal object AB, has its image A’B’ formed at centre of curvature.
    \nThe image is real-inverted and has same size as the object. (fig.).
    \n\"How Fig. <\/strong>Concave mirror: object at centre of curvature, image at centre of curvature<\/li>\n
  4. Object between Centre of Curvature and Focus<\/strong><\/span>
    \nReal object AB has its image A’B’\u00a0formed beyond centre of curvature.
    \nThe image is real-inverted and enlarged (bigger in size than the object). (Fig.)
    \n\"HowFig. <\/strong>Concave mirror: object between centre of curvature and focus, image beyond centre of curvature.<\/li>\n
  5. Object at Focus<\/strong><\/span>
    \nReal object AB has its image formed at infinity.
    \nThe image is imaginary inverted (reflected rays go downward) and must have very large size.
    \n\"HowFig. <\/strong>Concave mirror: object at focus image at infinity.<\/li>\n
  6. Object between Focus and Pole<\/strong><\/span>
    \nReal object AB has its image A\u00a2B\u00a2 formed behind the mirror. The image is virtual-erect and enlarged.
    \n\"How Fig.<\/strong> Concave mirror: Object between pole and focus, image behind the mirror.<\/li>\n<\/ol>\n

    People also ask<\/strong><\/p>\n