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Question
The surface of the Sun is at a temperature of approximately 5800 K, and radiates a peak wavelength of 500 nm. According to the Planck radiation law, what is its emitted intensity per unit wavelength at the peak?A) 8.4 W/cm2nm
B) 42 W/cm2nm
C) 84 W/cm2nm
D) 8.4 x 103 W/cm2nm
E) 4.2 x 107 W/cm2nm
Answer
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Related questions
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The intensity of the microwave background radiation, a remnant of the big bang:
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Any meson is a combination of:
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Q:
In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to:
A) the energy of the least energetic electron before it is ejected
B) the energy of the least energetic electron after it is ejected
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D) the energy of the most energetic electron after it is ejected
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Q:
In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:
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Q:
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Q:
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Q:
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Q:
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4) increase the separation between the slits
5) decrease the separation between the slits
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Q:
The resolving power of a telescope can be increased by:
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Q:
Light of wavelength 480 nm falls on a slit of width 3.5 m. What is the relative intensity (that is, the value of I/Im) of the diffraction pattern at an angle of 18?
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Q:
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