2 years ago

What is different about the electrons in metals when compared to other materials

Physics

1 answer:

Inga [223]2 years ago

4 0

Answer:

The metals create an electron cloud that makes a metal have a magnetic field

Explanation:

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The velocity of the photo electron is $6.11\times 10^5\ m/s$ .

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We need to find the velocity of the photo electron. The energy supplied by the photon is equal to the sum of minimum escape energy and the kinetic energy of the escaping electron. So,

$5.3\times 10^{-19}\ J=3.6\times 10^{-19}\ J+K\\\\K=5.3\times 10^{-19}-3.6\times 10^{-19}\\\\K=1.7\times 10^{-19}\ J$

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$K=\dfrac{1}{2}mv^2\\\\v=\sqrt{\dfrac{2K}{m}} \\\\v=\sqrt{\dfrac{2\times 1.7\times 10^{-19}}{9.1\times 10^{-31}}} \\\\v=6.11\times 10^5\ m/s$

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