1.Two slits, seperated by d=0.45mm, are illuminated with light of wavelength
560 nm. The pattern is viewed on a screen 2.5m from the slits.(a)What is
the phase different ψ at a point 2mm from the central bright fringe.and
(b)what is the intensity at a point 2mm from the central bright fringe.
2.Calculate the spacing between the bright fringe of yellow light of
wavelength 600nm. The slit seperation is 0.8mm, and the screen is 2m from
the slit.
3.請敘述「費馬原理」。
4.試用「費馬原理」證明「折射定律」。
5.請敘述「雷射(LASER)」的原理。
6.請列出三種液晶的種類(以結構來分)。
7.請說明LCD中「偏光板」的構造以及基本作用，並說明液晶在這之中的角色。