This is a free preview. For full access
Waves
Wave Reflection and Transmission
Description
Wave reflection and transmission happen when a wave moves from one medium to another. At the boundary, part of the wave can bounce back into the first medium, and part can pass into the second medium. The interface between the two media then acts like a boundary that is neither fixed nor free.
Th...
Show More
Transcript
当波从一种介质传播到另一种介质时,由于每种介质的密度不同,入射波会部分透射,部分反射。
在较稠密的介质中,波的传播速度将相对低于在较稀疏的介质中。
折射率用于比较电磁波在不同介质中的传播速度,其定义为光在真空中的速度与在给定介质中的速度之比。
当波从光密介质传播到光疏介质时,反射波和透射波与入射波同相,但其振幅减小。
相反,如果将激光置于另一侧,则波从光疏介质传播到光密介质。在这种情况下,反射波与入射波相位相差180°,而透射波与入射波保持同相。
Show More
More videos by Standards
Show More