The intensity of blackbody radiation peaks at a wavelength of 608 nm.
(a) What is the temperature (in K) of the radiation source? (Give your answer to at least 3 significant figures.) ______K
(b) Determine the power radiated per unit area (in W/m2) of the radiation source at this temperature. _______ W/m2
The intensity of blackbody radiation peaks at a wavelength of 608 nm. (a) What is the...
(1) The intensity of blackbody radiation peaks at a wavelength of 668 nm. (a)What is the temperature (in K) of the radiation source? (Give your answer to at least 3 significant figures.) (b)Determine the power radiated per unit area (in W/m2) of the radiation source at this temperature. (2) What is the binding energy in eV of electrons in ruthenium, if the longest-wavelength photon that can eject electrons is 264 nm?
4. Find the peak wavelength of the blackbody radiation emitted by (a) The Sun (2000 K) (b) The tungsten of a light bulb at 5800 K (c) Find their intensities (radiated power per unit area)
The surface of the sun has a temperature of approximately 5800 K. To good approximation we can treat it as a blackbody. (a) What is the peak-intensity wavelength λm? (b) What is the total radiated power per unit area? (c) Find the power per unit area radiated from the surface of the sun in the wavelength range 600.0 to 605.0 nm.
The Sun's surface is a blackbody with a surface temperature of 5800 K. a) at what wavelength does the sun emit most strongly? b) what is the total radiated power per unit surface area? c) what is the total radiated power over the entire surface?
The blackbody radiation emitted from a furnace peaks at a wavelength of 7.2 10-6 m (0.0000072 m). What is the temperature inside the furnace?
The blackbody radiation emitted from a furnace peaks at a wavelength of 2.4 10-6 m (0.0000024 m). What is the temperature inside the furnace?
2. The average person has 1.4 m2 of skin at a skin temperature of roughly 305 K (90°F) Consider the average person to be an ideal radiator standing in a room at a temperature of 293 K (68°F) (a) Calculate the power (energy per uni i) radiated by the average person in the form of blackbody radiation; express your answer in erg s-1. What is the person's "wattage"? (1 W = 107 erg s-1) Compare this to a typical incandescent...
The intensity of solar radiation reaching Mars averages about 580 W/m^2. Assuming that Mars behaves like a blackbody, how much energy is absorbed per unit time. What is equilibrium temperature if all this energy is re-radiated back into space?
a,) Plot the spectral radiant power (in W per m2 per unit wavelength) from a blackbody emitter at the two temperatures 500K and 1500K. b.) Determine the photon wavelength where the spectral radiant power is a maximum for each temperature.
7. Ultraviolet light with wavelength equal to 350 nm and intensity of 1.0 W/m2 is directed at a ted as a calcium surface. What is the maximum possible kinetic energy of electrons ejec result of this type of radiation? Give answer in units of eV? [10 points]