When sunlight strikes oil on the surface of water a variety of colors are observed what is the best explanation for this observa
tion
1 answer:
Light waves are reflected from front and back surfaces of the thin films and constructive interference between the two reflected waves occurs in different places for different wavelengths. Light shining on the upper surface of the thin film with thickness t is partly reflected at the upper surface (path abc). Light transmitted from the upper surface is partly reflected at the lower surface (path abdef). The two reflected waves come together at point P on the retina of the eye. Depending on the phase relationship, they may interfere constructively or destructively. Different colors have different wavelengths, so the interference may be constructive for some colors and destructive for others.
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Answer:
The equivalent capacitance will be
Explanation:
We have given two capacitance
They are connected in parallel
So equivalent capacitance
This equivalent capacitance is now connected in series with
In series combination of capacitors the equivalent capacitance is given by
So the equivalent capacitance will be