GWHS: Photon Energy_2024

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What is photon energy?

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Photon energy is the energy carried by a single photon, which is directly proportional to its frequency and inversely proportional to its wavelength. It can be calculated using the formula E = hf, where E is energy, h is Planck's constant, and f is frequency.

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How does wavelength relate to energy?

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Shorter wavelengths correspond to higher energy photons, while longer wavelengths correspond to lower energy photons. This relationship is described by the equation E = hc/λ, where E is energy, h is Planck's constant, c is the speed of light, and λ is wavelength.

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What is the photoelectric effect?

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The photoelectric effect is the phenomenon where electrons are emitted from a material when it absorbs light (photons) of sufficient energy. It supports the particle theory of light.

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What does the line emission spectrum indicate?

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The line emission spectrum indicates the specific wavelengths of light emitted by electrons transitioning from higher to lower energy levels in an atom.

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What is the relationship between frequency and energy of a photon?

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The energy of a photon is directly proportional to its frequency. Higher frequency photons have more energy.

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What is Planck's constant?

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Planck's constant (h) is a fundamental constant used in quantum mechanics, approximately equal to 6.626 x 10^-34 Js, and relates the energy of a photon to its frequency.

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What happens during electron transitions in an atom?

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Electrons can transition between different energy levels. When they move from a higher energy level to a lower one, they emit energy in the form of light.

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What is the formula to calculate the energy of a photon?

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The energy of a photon can be calculated using the formula E = hf, where E is energy, h is Planck's constant, and f is frequency.

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What is the significance of short wavelengths in terms of energy?

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Short wavelengths correspond to high energy photons, which can have significant effects in processes like the photoelectric effect.

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How do you calculate the wavelength of a photon given its frequency?

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The wavelength (λ) can be calculated using the formula λ = c/f, where c is the speed of light and f is the frequency.