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'bump height' on a cd surface

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02-14-2010, 05:09 PM

George321

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'bump height' on a cd surface

A CD player uses infrared radiation of wavelength 800nm and the plastic coating has a refractive index of 1.5. Calculate the ‘bump height’ on the CD surface.

Don't know where to start....
Help please
thanks

c= 3x10^8 ms

Last edited by George321; 02-14-2010 at 05:44 PM.

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infrared, readiation, refractive index, wavelength

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