I need summary of refraction. Can anybody pls help??
Answers
Answer:
refraction is change of direction that light undergoes when it enters a medium with a different density from the one through which it has been traveling — for example, when, after moving through air, it passes through a prism.
Explanation:
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Answer:
Refraction is the change in direction of a wave caused by a change in wave speed.
An interface is the boundary between two different media…
or two regions of a medium with different characteristics such as…
density (which is often related to temperature)
concentration of solute (salinity, for example)
mechanical stress
In geometric optics, when an incident ray meets an interface it will be partially
reflected
Reflected rays obey the law of reflection described in a previous section of this book.
Materials that reflect a significant portion of incident light appear shiny or lustrous.
transmitted
Transmitted rays obey Snell's law of refraction, which is described in this section of this book.
Materials that transmit a significant portion of incident light appear clear or transparent.
Materials that do not transmit any incident light are said to be opaque.
absorbed
The energy of absorbed rays is not destroyed, but changes form.
Materials that absorb a significant portion of incident light appear dark.
Angles are measured with respect to the line normal to the surface.
The angle of incidence is the angle between the incident ray and the normal.
The angle of reflection is the angle between the reflected ray and the normal.
The angle of refraction is the angle between the transmitted ray and the normal.
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