Using Wien's law, what is the wavelength (in nanometers) of the peak of the spectrum of a star which has a surface temperature of 2.90E+4 Kelvin? nm
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- Suppose you're experimenting with the spectrum produced by heated hydrogen gas. If you double the quantity of hydrogen and examine the resulting spectral lines, what is most likely to have changed? Group of answer choices The number of lines seen. The frequencies of the lines. The intensity of the lines. The pattern made by the lines. The wavelengths of the lines.Which of the following statements are TRUE about the Sun's spectrum, which is shown in this image? Brightness 2.5 3.5 0 200 Sun's Spectrum vs. Thermal Radiator of a single temperature T = 5777 K peak spectrum of Sun spectrum of T = 5777 K blackbody emission spectrum (continuum) absorption lines 400 600 800 1000 1200 1400 1600 1800 Wavelength (nanometres) 2000 The spectrum shows the presence of many sunspots. The overall shape is consistent with a continuous spectrum emitted by a blackbody. The spectrum shows that the Sun emits light of all colors equally, which is why we see it as white. The spectrum shows that the Sun emits some light in ultraviolet wavelengths. The spectrum peaks in infrared wavelengths.Consider a hydrogen atom is in its second excited state. Part (a) What is the shortest wavelength photon it can emit? Give your answer in nanometers. Part (b) What is the longest wavelength photon it can emit? Give your answer in nanometers.
- A stars wavelength is observed to be 200 nm. Calculate the approximate surface temperature of the starIf a star has a surface temperature of 5000 K what will the maximum wavelength emitted by the star be?A blackbody radiator in the shape of a sphere has a surface area of 152 m. It has a temperature of 1200 K how much energy does it emit per second?
- U U U U E Which diagram(s) show emission of Ultraviolet light? F B D A A D e B e E C F e-A lightbulb manufacturer makes bulbs with different "color temperatures," meaning that the spectrum of light they emit is similar to a blackbody with that temperature. Assuming the emitting areas of the filaments in two bulbs with color temperatures of 2,000 K and 4,000 K are the same, which of the two is the brighter? About how much brighter is this bulb than its companion?Explain why ionized calcium can form absorption lines, but ionized hydrogen cannot.