Created by StemPy LabTwo spheres, A and B, are made of the same material and behave as black bodies. Sphere A has a radius of and is kept at . Sphere B has a radius of and is kept at . The ratio of the power radiated by A to the power radiated by B, and the ratio of the wavelength at which A radiates most strongly to the wavelength at which B does, are, respectively,
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← A gas mixture contains 1 mole of an ideal monatomic gas and 1 mole of an ideal diatomic gas with rigid molecules (no vibration). The mixture is heated slowly at constant pressure. What fraction of the heat supplied to the mixture is used to do work on the surroundings as the gas expands?A block of mass m hanging from a light spring of force constant k oscillates vertically with time period T. The spring is cut into two pieces whose natural lengths are in the ratio 1 : 2. The two pieces are then fixed side by side, in parallel, and the same block is hung from the combination. The new time period of oscillation is →
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