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Ultraviolet light of wavelength 331 nm is made of… | StemPy Lab

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Ultraviolet light of wavelength 331 nm is made of photons. How much momentum does each photon carry? Use h = 6.63 × 10⁻³⁴ J s.

PhysicsMediumHigh School (11–12)Modern Physics › Dual Nature of Radiation and Matter Board Exam AP A-Level IB

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Ultraviolet light of wavelength $331$ nm is made of photons. How much momentum does each photon carry? Use $h = 6.63 \times 10^{-34}$ J s.

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← A red laser gives out light of wavelength 760 nm at a rate of 2.4 mW. About how many photons leave it each second? Use hc = 1240 eV nm and e = 1.6 × 10⁻¹⁹ C.Electrons leave a gun after being speeded up through 245 V. What is their de Broglie wavelength? Use λ = 1.227/√V nm. →

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