1. Convert 100 m, the length of a well-known track event, to kilometers.
1 answer:
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Answer:
94.82 nm
Explanation:
We have given that wavelength
We have to find the minimum film thickness that produces the least reflection
minimum thickness is given by
here n is given n=1.45
so minimum thickness
so the minimum film thickness will be 94.82 nm
This problem must be solved using a sketch. I attached an illustration of the problem.
You must trace the ray that reflects from the top off the table to your eyes. This how eyesight works, light rays reflects off the objects into your eyes.
Law of reflection tells us that light ray reflects off the surface at the same angle in which it falls on it( i attached another illustration of this).
Now we can write tangens equations:
We solve for h:
You must trace the ray that reflects from the top off the table to your eyes. This how eyesight works, light rays reflects off the objects into your eyes.
Law of reflection tells us that light ray reflects off the surface at the same angle in which it falls on it( i attached another illustration of this).
Now we can write tangens equations:
We solve for h: