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Using electromagnetic waves, you generally cannot resolve any structures that are smaller than the wavelength you are using. CD, DVD, and Blu-ray players use small “pits” that encode the 0s and 1s of the digital information stored on them—the smaller the pits, the more information you can store. A DVD can store 4.7 GB, and a Blu-ray can store 25 GB. If a DVD player typically uses lasers that emit red light in the wavelength range from 640 nm to 660 nm, what do you expect the wavelength and color of a Blu-ray laser to be?     The answer is Around 280 nm, which is UV light. Please help me find the process in getting this.

Using electromagnetic waves, you generally cannot resolve any structures that are smaller than the wavelength you are using. CD, DVD, and Blu-ray players use small “pits” that encode the 0s and 1s of the digital information stored on them—the smaller the pits, the more information you can store. A DVD can store 4.7 GB, and a Blu-ray can store 25 GB. If a DVD player typically uses lasers that emit red light in the wavelength range from 640 nm to 660 nm, what do you expect the wavelength and color of a Blu-ray laser to be?     The answer is Around 280 nm, which is UV light. Please help me find the process in getting this.

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Using electromagnetic waves, you generally cannot resolve
any structures that are smaller than the wavelength you are
using. CD, DVD, and Blu-ray players use small “pits” that
encode the 0s and 1s of the digital information stored on
them—the smaller the pits, the more information you can
store. A DVD can store 4.7 GB, and a Blu-ray can store 25 GB.
If a DVD player typically uses lasers that emit red light in
the wavelength range from 640 nm to 660 nm, what do you
expect the wavelength and color of a Blu-ray laser to be?

 

 

The answer is Around 280 nm, which is UV light. Please help me find the process in getting this. 

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