12) Estimate the wavelength of the radiation emitted by an interstellar cloud of 4000 K. nts)
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- What is the vrms of hydrogen on the surface of the sun if its temperature is 5.36E3 degC? What is the vrms of hydrogen on the surface of the earth if its temperature is 21.2 degC?What is the energy of a photon of wavelength 5.50 x 10-7 m, in Joules? [? [ ? ] × 10 [²] J Hint: c = Af1. Based on Planck's theory of black body radiation, the radiant spectral emittance is given in the following equation : 2nhc² n(2) hc 25 AkgT) – 1 where lamda is the wavelength, h is Planck's constant, kB is Boltzmann's constant, c is the speed of light, and T is the temperature on the Kelvin scale. Assuming T is constant, find the optimal wavelength equation.
- 1. What is the wavelength associated with a 250g cricket ball moving at 100 km/h?4.-The radius of the Sun is 6.96 × 108 m, and its total emitted energy is 3.85 × 1026 W.a) Assuming that the surface of the Sun radiates as if it were a blackbody, calculate its surface temperature.b) Using the result of part a), determine λmax for the Sun.6. An object with a temperature of 5,000 K emits an electromagnetic (EM) flux of 50 nanowatt. Apply the blackbody radiation law to calculate approximate EM flux emitted by this body if its temperature is changed to 18,000 F.