Solar energy is incident normally on the earth's surface at the rate of about 1.4 kW m^-2 .

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 × 10¹¹ m. Energy (E) and mass (m) are related by Einstein equation E=mc² where c (3 × 10 8ms^-1) is the speed of light in free space. The decrease in the mass of the sun is

(A) 10⁹kg s^-1 (B) 10³⁰kg s^-1 (C) 10²⁶ kg s^-1 (D) 10¹¹ kg s^-1

Solar energy is incident normally on the earth's surface at the rate of about 1.4 kW m^-2 .

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