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2024年3月A卷 · 第 12 题

2024年3月A卷 · 原库模块 1 · Q12 原库参考解析

\( f\left(x\right)=1,300\left(0.5\right)^{\frac{x}{14}} \) 
The function f models the intensity of a beam, f (x), in number of photons in the beam, x millimeters below the surface of a certain material. According to the model, what is the number of photons in the beam when it is at the surface of the material?
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