“dioptre”的概念、定义、习题解题方法及翻译-物理辞典

单词	dioptre
释义	dioptre A unit for expressing the power of a lens or mirror equal to the reciprocal of its focal length in metres. Thus a lens with a focal length of 0.5 metre has a power of 1/0.5 = 2 dioptres. The power of a converging lens is usually taken to be positive and that of a diverging lens negative. Because the power of a lens is a measure of its ability to cause a beam to converge, the dioptre is now sometimes called the radian per metre
随便看	plasmon plasticity pleochroic plutonium Poincaré group Poincaré sphere Poincaré stresses point defect point discharge point-contact transistor poise Poiseuille's equation poison Poisson's ratio polar coordinates polar molecule polar vector polarimeter polarizability polarization polarization of light polarizer polarizing angle Polaroid polaron

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。