Solar energy is incident normally on the earth’s surface at the rate of about 1.4 \kW \m^{-2}. The distance between the earth and the sun is 1.5×10^11 m. Energy (E) and mass (m) are related by Einstein equation \E=\mc^2 where c (3×10^8 \ms^{-1}) is the speed of light in free space. The decrease in the mass of the sun is

Question

Solar energy is incident normally on the earth’s surface at the rate of about 1.4 \kW \m^{-2}. The distance between  the  earth and the sun is 1.5×10^11 m. Energy (E) and mass  (m) are related by Einstein equation \E=\mc^2 where c (3×10^8 \ms^{-1}) is the speed of light in free space. The decrease in the  mass of the sun is

Examsnet · Accepted Answer

Correct Answer is : 109‌kg‌s−1

KVPY SA Exam 2013 Question Paper