What about the air and water makes the pencil look strange? b. Approximately where does the tip of the pencil (point T) seem to be to the viewer?
Applications Of Reflection Of Light
When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.
Sign Convention for Mirrors
A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.
Someone has dropped their pencil into a cup of water. They stare at it and notice something strange about the image of the pencil....
a. What about the air and water makes the pencil look strange?
b. Approximately where does the tip of the pencil (point T) seem to be to the viewer? Use ray tracing to find the apparent tip position. (A ruler or straight edge may be helpful.)
Draw this on a separate piece of paper and upload to the assignment.
A. As we know air has less density than water so the penicil would seem shortened and risen up due to phenomena of refraction.
B. The pencil appears to be bent when it is kept in a glass tumbler with water due to refraction of light. The refraction of light occurs when the speed of light changes from rarer medium to denser medium. So due to this phenomena the tip of pencil which is at position P will seem to the position of P'. But when the pencil is dipped in kerosene or in oil, the bending is not the same because they are optically denser than water.
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