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<h2 class="wp-block-heading"><strong>Reflection of Light</strong>&nbsp;</h2>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="940" height="243" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2298.png" alt="key concepts reflection of light" class="wp-image-6649" srcset="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2298.png 940w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2298-300x78.png 300w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2298-768x199.png 768w" sizes="auto, (max-width: 940px) 100vw, 940px" /></figure></div>


<h3 class="wp-block-heading"><img loading="lazy" decoding="async" width="74" height="61" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/Screenshot-2128.png" alt="introduction">Introduction</h3>



<p>An object <strong>reflects</strong> certain amount of light falling on it. When this reflected light enters our eyes, we are able to see it. A <strong>transparent glass</strong> object lets almost all the light falling on it to pass through. That’s why we are able to see through it. <strong>Opaque</strong> objects do not let light to pass through themselves. They absorb and reflect most light that falls on them. A <strong>mirror</strong> reflects most of the light that falls on its surface. That’s why it is able to produce an image of an object. Generally, highly <strong>polished</strong> surfaces reflect more amount of light falling on them. In this section we will be looking at the reflection of light from various surfaces.&nbsp;</p>



<h3 class="wp-block-heading"><img loading="lazy" decoding="async" width="65" height="60" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/Screenshot-2130.png" alt="biosphere">Explanation</h3>



<h3 class="wp-block-heading"><strong>Reflection of light:</strong>&nbsp;</h3>



<p><strong>Reflection</strong> of light is a phenomenon of bouncing back of light from the surface of an object.&nbsp;</p>



<p>The surface that reflects light is called a <strong>reflecting surface.</strong>&nbsp;</p>



<p>A ray of light that hits the reflecting surface is called an <strong>incident ray</strong>.&nbsp;</p>



<p>The incident ray after reflecting off the surface is called the <strong>reflected ray</strong>.&nbsp;</p><div class="fillWidthInMob"><a loading='lazy' class="showAdInAllRes"  data-toggle="modal" data-target=#homeLeadForm data-heading="Get Expert Guidance" href="#"><img class="img-fluid" alt="parallel" src=https://a.storyblok.com/f/128066/1100x230/00b28b4876/11-applying-for-collages_leaderboard-1100x230.jpg /></a></div>



<p>The point at which the incident hits the reflecting surface is called the <strong>point of incidence</strong>.&nbsp;</p>



<p>An imaginary line is always drawn <strong>perpendicular</strong> to the reflecting surface at the point of incidence, called the <strong>normal</strong>.&nbsp;</p>



<p>The angle made by the incident ray with the normal is called the <strong>angle of incidence (i)</strong>.&nbsp;</p>



<p>The angle made by the reflected ray with the normal is called the <strong>angle of reflection (r)</strong>.&nbsp;</p>


<div class="wp-block-image">
<figure class="aligncenter size-full is-resized"><img loading="lazy" decoding="async" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2268.png" alt="Reflection of light from a plane mirror" class="wp-image-6605" width="484" height="265" srcset="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2268.png 883w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2268-300x164.png 300w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2268-768x421.png 768w" sizes="auto, (max-width: 484px) 100vw, 484px" /></figure></div>


<p class="has-text-align-center"></p><div class="fillWidthInMob"><a loading='lazy' class="showAdInAllRes"  data-toggle="modal" data-target=#homeLeadForm data-heading="Get Expert Guidance" href="#"><img class="img-fluid" alt="parallel" src=https://a.storyblok.com/f/128066/1100x230/00b28b4876/11-applying-for-collages_leaderboard-1100x230.jpg /></a></div>



<h2 class="wp-block-heading"><strong>Laws of reflection:</strong>&nbsp;</h2>



<p>The <strong>laws of reflection</strong> are,&nbsp;</p>



<ol class="wp-block-list"><li>The incident ray, the reflected ray and the normal at the point of incidence, all lie on the <strong>same plane</strong>.&nbsp;</li></ol>



<ol class="wp-block-list" start="2"><li>The angle of incidence is <strong>equal</strong> to the angle of reflection.&nbsp;&nbsp;</li></ol>



<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>i = r</strong>&nbsp;</p>



<p>The laws of reflection hold <strong>always.</strong>&nbsp;</p>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="431" height="269" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2281.png" alt="Laws of reflection" class="wp-image-6620" srcset="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2281.png 431w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2281-300x187.png 300w" sizes="auto, (max-width: 431px) 100vw, 431px" /></figure></div>


<p class="has-text-align-center"></p>



<p>An incident ray hitting the reflecting surface is said to be <strong>incident normally </strong>on the surface if it goes along the normal&nbsp;</p>



<p>The reflected ray follows the same path as that of the incident ray but in <strong>opposite </strong>direction.&nbsp;</p>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="482" height="202" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2266.png" alt="Normal incidence " class="wp-image-6603" srcset="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2266.png 482w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2266-300x126.png 300w" sizes="auto, (max-width: 482px) 100vw, 482px" /></figure></div>


<p class="has-text-align-center"></p>



<h3 class="wp-block-heading"><strong>Spherical mirrors:</strong>&nbsp;</h3>



<p>The most common curved reflecting surface which are widely used are the spherical mirrors.&nbsp;</p>



<p>A spherical mirror is usually made by cutting out a piece from a hollow spherical glass structure.&nbsp;</p>



<p>One of the surfaces of this piece is then silvered.&nbsp;</p>



<p>The inner surface of the piece is called the concave surface and the outer bulged out surface is called the convex surface.&nbsp;</p>



<div class="wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex">
<div class="wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow" style="flex-basis:50%"><div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="385" height="224" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/Screenshot-2263.png" alt="" class="wp-image-6622" srcset="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/Screenshot-2263.png 385w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/Screenshot-2263-300x175.png 300w" sizes="auto, (max-width: 385px) 100vw, 385px" /></figure></div></div>



<div class="wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow" style="flex-basis:50%"><div class="wp-block-image">
<figure class="aligncenter size-full is-resized"><img loading="lazy" decoding="async" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/concave-surface.png" alt="" class="wp-image-7200" width="329" height="202" srcset="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/concave-surface.png 537w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/concave-surface-300x184.png 300w" sizes="auto, (max-width: 329px) 100vw, 329px" /></figure></div></div>
</div>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="452" height="235" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2272.png" alt="Spherical mirrors " class="wp-image-6610" srcset="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2272.png 452w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2272-300x156.png 300w" sizes="auto, (max-width: 452px) 100vw, 452px" /></figure></div>


<p class="has-text-align-center"></p>



<p>If the outer convex surface is silvered, the inner concave surface is capable of reflecting light. This mirror in which the concave surface is the reflecting surface is called a <strong>concave mirror</strong>.&nbsp;</p>



<p>If the inner concave surface is silvered, the outer convex surface is capable of reflecting light. This mirror in which the convex surface is the reflecting surface is called a <strong>convex mirror</strong>.&nbsp;</p>



<p>The convex surface of a concave mirror and the concave surface of a convex mirror are <strong>rough</strong> surfaces.&nbsp;</p>



<h3 class="wp-block-heading"><strong>Reflection by spherical mirrors:</strong>&nbsp;</h3>



<p>The two laws of reflection also hold for the reflection from spherical surfaces. In other words, the incident ray, the reflected ray and the normal at the point of incidence all lie on the same plane and also the angle of incidence and the angle of reflection are equal to each other for spherical mirrors as well.&nbsp;</p>


<div class="wp-block-image">
<figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="686" height="317" src="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2271.png" alt="Reflection from spherical mirrors " class="wp-image-6609" srcset="https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2271.png 686w, https://www.turito.com/learn-internal/wp-content/uploads/2022/08/image-2271-300x139.png 300w" sizes="auto, (max-width: 686px) 100vw, 686px" /></figure></div>


<p class="has-text-align-center"></p>



<h2 class="wp-block-heading"><strong>Summary</strong></h2>



<ol class="wp-block-list"><li>An object reflects certain amount of light falling on it. When this reflected light<br>enters our eyes, we are able to see it.</li><li>Generally, highly polished surfaces such as the mirror surface reflect most of the<br>light falling on them.</li><li>Reflection of light is a phenomenon of bouncing back of light from the surface of an<br>object.</li><li>The incident ray, the reflected ray and the normal at the point of incidence, all lie on<br>the same plane.</li><li>The angle of incidence is equal to the angle of reflection.   <strong>i=r</strong></li><li>The laws of reflection hold always.</li><li>An incident ray hitting the reflecting surface is said to be incident normally on the</li><li>surface if it goes along the normal.</li><li>The spherical mirror in which the curved in surface is the reflecting surface is</li><li>called a concave mirror.</li><li>The spherical mirror in which the bulged-out surface is the reflecting surface is</li><li>called a convex mirror.</li><li>The two laws of reflection hold for the reflection of light by spherical mirrors.</li></ol>
