What is the Key word of cavity
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A cavity is a carved-out space inside something solid like a wall or a tooth. ... Cavity shares the Latin root cavus, "hollow," with the word cave.
Explanation:
What is a cavity in physics?
the free encyclopedia. An electromagnetic cavity is a cavity that acts as a container for electromagnetic fields such as photons, in effect containing their wave function inside. The size of the cavity determines the maximum photon wavelength that can be trapped.
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