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ZX-2F9306E99B2026年5月国际A卷 · 第 22 题
2026年5月国际A卷 · 原库模块 1 · Q22 原库参考解析
An exponential function \( f \) gives the estimated amount of an X-ray beam's initial intensity remaining after passing through a w-centimeter-thick window made of beryllium. The function estimates that after passing through a 1.2-centimeter-thick window, the amount of the X-ray beam's initial intensity remaining is 0.74. Which equation could define ?
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