EducatorSharmin

  Reflection of Light: Light is an electromagnetic wave. Every wave has a wavelength, which means light also has a wavelength.  While traversing from the first medium into the second medium, if a part of light returns to the first medium, the phenomenon is called reflection.  Some parts of it may enter the second medium which is called refraction and some of it may be absorbed which is called absorption.  Laws of Reflection: 1st Law: The reflected ray will be in the plane which we imagined through the incident ray and the normal. 2nd Law: The reflected angle is equal to the incident angle. When a light ray from the first medium to the second medium is incident on a point, first we have to imagine a perpendicular at that point which is called a normal.  Then imagine a plane that contains this incident ray and the normal. The ray, which is incident at a point, from the first to the second medium is called the incident ray (XO). The ray which is reflected (OX'...