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Statement of a problem № 1525

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The spectral composition of solar radiation is much the same as that of a black body whose maximum emission corresponds to the wavelength 0.48 μm. Find the mass lost by the Sun every second due to radiation. Evaluate the time interval during which the mass of the Sun diminishes by 1 per cent.

Solution:
The spectral composition of solar radiation is much the same as that of a black

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