Physics

Physics, 09.07.2019 15:30, lesok0818

Xray photons have a wavelength, frequency, and energy than do ultraviolet photons. x ray photons have a wavelength, frequency, and energy than do ultraviolet photons. shorter, higher, lower longer, higher, higher shorter, higher, higher longer, lower, lower shorter, lower, higher longer, lower, higher

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Physics, 27.07.2019 02:10, jellyangie1

in class, we'll see the energy of a photon is given by hv where v is the frequency of the photon and h is planck's constant. this means that simply noting the wavelength or frequency of a photon is equivalent to stating what its energy is! this has, for better or worse, led to the use of numerous units for specifying the energy of a photon. depending on the region of the electromagnetic spectrum being described, different units are commonly used: a. the energy of photons that fall in the ultraviolet range is typically expressed by giving the photon wavelength in nanometers. for a photon with a wavelength of 133 nm, specify the photon's frequency, v in hertz (hz), and its energy in units of electron volts (ev), joules (j), and wavenumbers (cm1) b. the energy of photons with wavelengths in the mid-infrared range is typically described using wavenumbers (1/x), a quantity proportional to energy. for an ir photon with energy of 1400 cm1, what is the photon's frequency in hertz, its wavelength in nm, and its energy in units of electron volts and joules? c. the energy of photons in the microwave region is traditionally denoted by listing the photon's frequency in mhz. for a photon with a frequency of 45,000 mhz, what is its wavelength in μm and its energy in units of electron volts, joules, and wavenumbers? d. calculate the number of photons emitted in one second by a 60 w sodium lamp that gives off yellow light at 589 nm. this emission band is known as the sodium "d line" and is largely responsible for the yellow color of street lamps!

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Chemistry, 11.09.2019 08:10, edith47

Need with these college chemistry questions asap with work shown on how to get the answer and the questions need to be answered in the form of what is given, what i need to know to solve the question, and the solution with work you 1.) a particular microwave photon has a wavelength of 0.01 m, a photon of green visible light has a wavelength of 520 nm and a photon of gamma radiation has a wavelength of 8 pm. rank these forms of electromagnetic radiation in order of increasing energy and frequency. frequency (ν): energy (e): what general trend do we see? hint: ▲ do not do a calculation. what is the relationship between frequency and wavelength? between energy and wavelength? 2.) what is the wavelength of one ultraviolet (uv) photon if the frequency is 1.50 × 1015 s−1? what is the energy of one uv photon of this frequency? what is the energy of one mole of uv photons of the same wavelength? hint: ▲ what is the relationship between frequency of light and its wavelength? what is the relationship between the energy of a photon and its wavelength? 3.) an argon laser gives off pulses of green light (wavelength = 514 nm). if a single pulse from the laser has a total energy of 10.0 mj how many photons are in the pulse? hint: ▲ what is the energy of a single photon of this green light? what is the energy of more than one photon? 4.) several everyday objects are listed below. how does white light interact with each of these? is it transmitted, reflected, absorbed or emitted? explain how you know. a light bulb that is on a gallon of milk a glass of water 5.) green light of wavelength 516 nm is absorbed by an atomic gas. what is the energy difference between the two quantum states involved in the transition? if the gas absorbed a mole of photons, what is the total energy that would be absorbed? 6.) in the bohr model for the hydrogen atom, in which orbit does an electron have higher overall energy: n = 1 or n = 5? hint: ▲ the phrase "quantum state" is another way to say energy level. what is the relationship needed to find the energy of a single photon? how many photons are in a mole of photons?

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Mathematics, 16.09.2019 09:20, dathanboyd

Xray photons have a wavelength, frequency, and energy than do ultraviolet photons.

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Chemistry, 02.10.2019 22:00, TropicalFan

Certain atoms emit photons of light with an energy of 3.820 ✕ 10−19 j. calculate the frequency (in hz) and wavelength (in nm) of one of these photons. frequency hz and wavelength nm what is the total energy (in kj) in 1 mole of these photons? kj

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