三思一道天文折射题浙江宁波效实中学沈晨这是一道国外中学物理竞赛题，题目以天文折射力问题情景，初看十分蹊跷：Ｘ行星上大气的折射率随着高行星表面的高度ｈ按照ｎ＝ｎ０－ａｈ规律而减小．行星的半径为Ｒ，行星表面某一高度ｈ０处有光波道，它始终在恒定的高度，光线... Think again with astronomical refraction title Zhejiang Ningbo Institute of Effectiveness Shen Chen This is a foreign high school physics contest title, subject with the problem of astronomical refractive power, at first glance is very ambiguous: X on the planet’s atmospheric refractive index with the height of the surface of the high planet h The n=n0-ah law decreases. The radius of the planet is R, there is a light channel at a certain height h0 on the surface of the planet, it is always at a constant height, the light...