At what rate does the Sun emit photons? For simplicity, assume that the Sun's entire emission at the rate of `3.9 xx 10^(26)` W is at the single wavelength of 550 nm.

Explanation

To find the rate at which the Sun emits photons, we can use the relationship between power, energy, and the wavelength of the emitted photons. Here’s a step-by-step solution:

### Step 1: Understand the relationship between power, energy, and time
The power \( P \) emitted by the Sun can be expressed as:
\[ P = \frac{E}{t} \]
where \( E \) is the energy emitted and \( t \) is the time.
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