Estimate the Number of Photons Emitted by the Sun in a Second.The

Multiple Choice

Estimate the number of photons emitted by the Sun in a second.The power output from the Sun is 4 $\times$ 10²⁶ W and assume that the average wavelength of each photon is 550 nm.

A) 10²⁶
B) 10⁴⁵
C) 10²³
D) 10²⁸
E) none of the above