A ray of light strikes a plane mirror, such that the angle with the mirror is 20°. What is the value of angle of reflection? What is the angle between the incident ray and the reflected ray? ∵ Light ray makes an angle of 20° with the mirror∴ ∠ABM = 20°Angle of incidence = ∠i = 90° – 20°∠i = 70° ∵ ∠i = r ∴ ∠r = 70° Angle between incident ray and reflected ray = ∠i + ∠r = 70°+ 70°= 140° Concept: Images Formed by a Plane Mirrors Is there an error in this question or solution? a) Angle of incidence = 90-20 = 70 degrees.Angle of reflection = Angle of incidence = 70 degrees.b) For normal incidence, angle of incidence = Angle of reflection = 0 degrees. There is a unique difference between reflection and refraction and it is important to analyze both these terms and understand the definitions of both these terms. Reflection is simply the property of a light that rebounds after hitting a surface. When the light that passes through a surface undergoes some changes in appearance, whenever it usually passes through a medium, this phenomenon is usually referred to as refraction. The two different types of lights that are typically involved in this are the incident ray and the reflected ray. Light energy is incredible and has many uses to it. There is usually a misunderstanding that occurs when anybody hears the terms reflection and refraction. Reflection is the act of light reflecting back when it hits a medium on a plane. Refraction is the process by which light shifts its path as it travels through a material, causing the light to bend. Thus, this is the key difference between reflection and refraction. If you liked this article and would like to read more download the BYJU’S app today! You may also want to check out the related articles here.
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