A blackbody has a temperature of 5 K. At what wave-length is it brightest?
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- An electron is moving at 1.00 km per second. What is it's de Broglie wavelength? Show the algebraic form of all equation(s) applied and report your final answer with the correct units and number of significant figures.At what velocity will an electron have a wavelength of 2.8 m?A blackbody is brightest at a wavelength of 800 nm. At what wavelength would the blackbody be brightest if its temperature were tripled?
- A photon has a wavelength in a vacuum of 500nm, if its energy is doubled, what is the associated wavelength in a vacuum?What is the wavelength of a photon emitted when an electron jumps from the n=3 to the n=2 energy levels of a lithium atom (Z=3)? Express your answer in nanometers and keep three significant digits.Question 9 1 pts What is the total irradiance of a blackbody at the temperature of 200K. Provide you answer in units of W/m2.