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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 16 - Calorimetry and Heat Transfer > Rays from the sun are focused by a lens of diameter 5 cm on to a block of ice and 10 g of ice is melted in 20 min. Therefore the heat from the sun reaching the earth per min per square centimeter is (Latent heat of ice L = 80 cal g^−1 )

Rays from the sun are focused by a lens of diameter 5 cm on to a block of ice and 10 g of ice is melted in 20 min. Therefore the heat from the sun reaching the earth per min per square centimeter is (Latent heat of ice L = 80 cal g^−1 )

Thermal capacity of 40 g of aluminum (s = 0.2 cal/g K) is