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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Consider two hot bodies B1 and B2 which have temperature 100∘C and 80∘C respectively at t = 0. The temperature of surroundings is 40∘ C. The ratio of the respective rates of cooling R1 and R2 of these two bodies at = 0 will be

Consider two hot bodies B1 and B2 which have temperature 100∘C and 80∘C respectively at t = 0. The temperature of surroundings is 40∘ C. The ratio of the respective rates of cooling R1 and R2 of these two bodies at = 0 will be

A black body radiates energy at the rate of E W/ m^2 at a high temperature T K. When the temperture is reduced to T/2 K the radiant energy will be.........