Write 10 differences between reflections and refractions.
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Answer:
In reflection, the waves bounce off the surface. On the contrary, in refraction, the waves pass through the surface, that changes their speed and direction. In reflection, the angle of incidence is same as the angle of reflection. ... Reflection takes place in mirrors, while refraction occurs in lenses.
Answer: reflection- Light rays change direction when they reflect off a surface, move from one transparent medium into another or travel through a medium whose composition is continuously changing. Reflection of light is the bouncing back of light when it strikes a smooth surface. If the surface is smooth and shiny like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. Generally there are two forms or types of reflections, that is, Regular reflection (Specular reflection) and Diffused reflection.
Regular or Specular reflection is when light rays hit a smooth surface and travel in the same direction. On the other hand, diffuse reflection is when light hits an object and reflects in lots of different directions. This happens when the surface is rough.
There are two laws in physics that explains behavior of reflection of light. According to the first law of reflection of light, the incident ray, the reflected ray and the normal all lie in the same plane whereas According to the second law of reflection of light (Snell’s law), the angle of reflection is always equal to the angle of incidence.
refraction- The effects of refraction are responsible for a variety of phenomena such as the apparent bending of an object that is partially submerged in water and the mirages observed on a hot, sandy desert. The refraction of visible light is also an important characteristic of lenses that enables them to focus a beam of light onto a single point.
Refraction is simply bending or change in direction of light. Refraction occurs as light passes from one medium to another only when there is a difference in the index of refraction (optical density) between two materials. This change of direction is caused by a change in speed. For example, when light travels from air into water, it slows down, causing it to continue to travel at a different angle or direction.
There are two laws of physics that explains behavior of refraction of light. According to the first law of refraction of light, the incident ray, the refracted ray and normal at the point of incidence all lie in the same plane whereas According to the second law of refraction, the ratio of sine of angle of incidence to the sine of angle of refraction is constant for a given pair of media.
Explanation:
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