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Homework Statement
Calculate energy of a 0.07078nm photon
Homework Equations
E = hc / lamda
The Attempt at a Solution
(6.63x10E-34)(3.0x10E8) / (7.078x10E-11)(1.60x10E-19)
=17563.2 eV
But the correct answer is 17520
The energy of a photon is a measure of the amount of electromagnetic energy that the photon carries. It is directly proportional to the frequency of the photon, which is a measure of how many waves of the electromagnetic field pass a given point in one second.
The energy of a photon can be calculated using the equation E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the photon. This equation is known as the Planck-Einstein relation.
The energy of a photon is typically measured in electron volts (eV) or joules (J). One electron volt is equivalent to the amount of energy gained by an electron when it is accelerated through a potential difference of one volt.
The energy of a photon is directly proportional to its frequency, which means that higher frequency photons have higher energy. This relationship is illustrated by the electromagnetic spectrum, which shows the different types of electromagnetic radiation organized by their frequencies and corresponding energies.
Some everyday examples of photons and their energies include visible light, which has a range of frequencies and energies that allow us to see color, and radio waves, which have lower frequencies and energies that are used for communication. X-rays and gamma rays, which have much higher frequencies and energies, are used in medical imaging and radiation therapy.