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Total Internal Reflection What is Total Internal Reflection? When light travels from an optically denser medium to an optically rarer medium then at the interface, it is partly reflected back into the same medium and partly refracted into the second medium. This reflection is called the internal reflection. We know that when a ray…
Refraction of light Refraction of light:- When a ray of light enters from one medium to another transparent medium, a part of the light gets reflected back in the first medium while the remaining part enters the transparent medium. This remaining part, which enters the other medium, changes its direction of propagation at…
Mirror Formula Mirror Formula :- Below figure shows the ray diagram of image formation by concave mirror considering three rays. It shows the image A′B′ (real in this case) of an object AB. In the above figure only three rays emanating from the point A are shown but actually an infinite number…
Relation Between Focal Length And Radius of Curvature Relation between focal length and radius of curvature :- Let C be the center of curvature of the mirror. Consider a ray parallel to the principal axis striking the mirror at M. Then CM will be perpendicular to the mirror at M. Let θ be the…
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Image formed by plane mirror is ? Image formed by Plane Mirror :- The image formed by plane mirror is always virtual, upright, and of the same shape and size as the object. The image behind the mirror is called a virtual image because it cannot be projected onto a screen—the rays only appear to…
Image formed by convex mirror (Image formation by spherical mirror) Since focus(F) in a convex mirror and center of curvature(C) are located behind the mirror, so the object can have only two positions, one at an infinite distance and the other between the pole and infinity of the mirror. (a) When the object…
Image formation by concave mirror (Image formation by spherical mirror) To determine the position, nature and size of the image formed by a spherical mirror, it is necessary to consider the two rays of light coming from the object. For this, a ray parallel to the principal axis coming from the object to…
Ray Optics Ray optics is that part of optics which studies the motion of light by considering it as a ‘ray’. According to the assumption of ray optics, as long as light travels in a homogeneous medium, its path is a straight line. Where two mediums meet, the light rays are bent. Light…
Class 12 Physics Notes | Class 12 Physics Class 12 Physics Notes | Class 12 Physics Curio Physics is committed to prepare study material(Notes/Video Lectures) for Class 11Th, 12Th, NEET and IIT-JEE, free of cost. The study material you find here is more focused and coherent and as well as as simple as…
Electric Field Strength due to a Uniformly Charged Rod at a General Point To find electric field strength at any general point P, let the point P be at a perpendicular distance R from the rod and let Q be the total charge (For specificity, Q is taken as positive, but the results apply…
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