A hydrogen atom in an n=2, I=1, m1 = -1 state emits a photon when it decays to an n=1 I=0, mI=0 ground state. If the atom is in a magnetic field in the + z direction and with a magnitude of 2.50 T, what is the shift in the wavelength of the photon from zero-field value?
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A hydrogen atom in an n=2, I=1, m1 = -1 state emits a photon when it decays to an n=1 I=0, mI=0 ground state. If the atom is in a magnetic field in the + z direction and with a magnitude of 2.50 T, what is the shift in the wavelength of the photon from zero-field value?
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- Consider photons incident on a hydrogen atom. (a) A transition from the n = 4 to the n = 7 excited-state requires the absorption of a photon of what minimum energy? eV(b) A transition from the n = 1 ground state to the n = 6 excited state requires the absorption of a photon of what minimum energy? eVSuppose a star with radius 8.57 × 108 m has a peak wavelength of 680 nm in the spectrum of its emitted radiation. (a) Find the energy of a photon with this wavelength. J/photon (b) What is the surface temperature of the star? K (c) At what rate is energy emitted from the star in the form of radiation? Assume the star is a blackbody (e = 1). W (d) Using the answer to part (a), estimate the rate at which photons leave the surface of the star. photons/sA beam of 400 nm light is adjusted to have the same intensity as a beam of 600 nm light. How does the number of photons in the 400nm beam, N400 compare to the number of photons, N600 in the 600 nm beam. Question 5 options: N400 = 2*N600 N400 = 32600 N400 = N600 N400 = 23600 N400 = 2600 None of the other responses are correct.
- B4. A bone sample has a density p = 1.2x10³ kg/m³, a molar mass m = 217 g/mol and an interaction cross section per atom o = 6.0x10-22 cm². Determine the linear attenuation coefficient µ (in cm-¹) and the half value layer (in cm). Assume there is no scattering when the radiation interacts with the bone sample. Express the values to 3 significant figures, if necessary.A helium-neon laser produces a beam of diameter 1.75 mm, delivering 3.15 x 1018 photons/s. Each photon has a wavelength of 633 nm. (a) Calculate the amplitude of the electric field inside the beam. kv/m (b) Calculate the amplitude of the magnetic field inside the beam. μT (c) If the beam shines perpendicularly onto a perfectly reflecting surface, what force does it exert on the surface? nN (d) If the beam is absorbed by a block of ice at 0°C for 2.10 h, what mass of ice is melted? gAn electron in a hydrogen atom makes a transition from the n=1 state to the n=3 state (1eV= 1.6 x10^-19 J and h = 6.63 x 10^-34 J s= 4.136 x 10^-15 Ev/hz c =3.0 x10^8 m/s) what is the energy of the photon absorbed in transition and what is the frequency of the absorbed photon energy?