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MrRa [10]
3 years ago
6

In every atom, one or more positive charges are positioned ______.

Physics
1 answer:
faust18 [17]3 years ago
6 0

In a dense core called the nucleus

Silver

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Lucite has a refractive index of n=1.50. This means that the speed of the light in lucite is decreased according to:
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v=\frac{3 \cdot 10^8 m/s}{1.50}=2\cdot 10^8 m/s
The frequency of the light is f=5.09 \cdot 10^{14}Hz, so now we can calculate the wavelength in lucite by using the formula:
\lambda=\frac{v}{f}=\frac{2\cdot 10^8 m/s}{5.09 \cdot 10^{14} Hz}=3.93 \cdot 10^{-7} m=393 nm
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