贵刊 2 0 0 0年第 8期刊登了笔者“怎样理解入射光的强度”一文 .在该文中 ,我们认为 :入射光的强度应理解为单位时间内入射光子数的多少 ,而不能理解为是单位时间内沿光传播方向单位截面积上所通过的能量 .贵刊在2 0 0 1年第 3期又刊登了刘效武老师题为“也谈‘怎样理解入射光 In your article “How to Understand the Intensity of Incident Light” published in the 8th issue of your magazine in 2000, in this paper, we believe that the intensity of incident light should be understood as the number of incident photons per unit of time, and cannot be interpreted as It is the energy that passes through the unit cross-sectional area along the direction of light propagation per unit time. In issue 3 of 2001, you published the article titled “Speaking about how to understand incident light” by Liu Xiaowu.