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

question 139

Multiple Choice

Estimate the number of photons emitted by the Sun in a second. The power output from the Sun is 4 × 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.

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