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For a blackbody, the frequency at which maximum energy is emitted is 3 x 1013 Hz:
A. Give a wavenumber for the wavelength of the infrared emission?
B. What is the temperature of the blackbody?
C. What is the total radiance emittance for the blackbody?
D. Consider an emitter (with an emissivity of 0.5) at the same temperature of the blackbody (obtained from B). What is the total power lost by this emitter if its area is 2 m2?
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The displacement of body in particular second is given by the equation Sn=u+a (2n-1)÷2, u is speed and a is acceleration. Dimensions of Sn are?
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if 2.13*106J of work must be done on a roller_coaster car to move it 3.00*102m,how large is the net force acting on the car ?
Cathode rays are made up of: (1) Positively charged particles (2) Negatively charged particles (3) Neutral particles (4) None of these Ans: (2)Negatively charged pa
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