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logearav
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Homework Statement
When i see the back of a CD or DVD, there is a spectrum, in which the various colours are overlapping with each other(continuous spectrum)
Homework Equations
What is the reason for this phenomenon, diffraction or dispersion?
The Attempt at a Solution
Diffraction means bending of light around the edges of obstacles and Dispersion is splitting of white light into its constituent colours or wavelength.
I presume the tracks and sectors present in CD or DVD acts as slits and rulings akin to grating element. Am i correct? Pls help revered members.