20) Calculate the observed wavelength of 500 nm photons coming from the surface of the Sun that is gravitationally redshifted by Sun.
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Q: Provide the answers in 90 minutes and count as 2 questions if necessary.
A: PART A: PART B: PART C: PART D:
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- Hypothetically if the 100W bulb only produced green light, and 10% of the energy consumed was used to produce green light (λ=500nm), the number of green photons produced each second is ___x1019Two protons experience a head-on collision moving with velocity v. In order for there to be enough energy to create a new proton- antiproton pair, the velocity of each proton must equal? A) 2c B) 0.866c .914c D) 1.414c2. Show that for any observable Q, one can write d 11 ( 12/10) (Q) = 1/2 ([H1, Q]) + dt Ət
- Please don't provide handwrittin solution...A charged droplet is released between 2 vertical plates with an electric field across them. Calculate the deflection (z) of the droplet by the time it leaves the electric field region. You should first calculate the time spent by the droplet accelerating under the action of gravity Droplet mass: 3.5x10-15 kg Droplet charge: 861x10-19 C Gap (d): 0.1 m Length of plates (L): 0.3 m Voltage (VA-VB): 5 V Acceleration due to gravity 9.8 ms-2Is this a blackbody radiation graph
- Why does the cosmic microwave background (CMB) shine in low-energy microwave wavelengths? O The trapped photons within the plasma of the earliest universe originally had wavelengths in the microwave band due to rapid inflation O The CMB was originally emitted as high-energy gamma rays and x-rays, but the light has redshifted downward to lower-energy microwaves through time When nuclei of H and He first combined with free electrons to create atoms, photons of light were released as microwaves The photons released in the CMB were intensely hot, with energy levels in microwave wavelengths The early universe 380,000 years after the Big Bang was cold (2.7 kelvins) the temperature of microwave energyThe peak intensity of the CMBR occurs at a wavelength of 1.1 mm. (a) What is the energy in eV of a 1.1-mm photon? (b) There are approximately 109 photons for each massive particle in deep space. Calculate the energy of 109 such photons. (c) If the average massive particle in space has a mass half that of a proton, what energy would be created byconverting its mass to energy? (d) Does this imply that space is “matter dominated”? Explain briefly.