[填空题]
If a soap bubble is 120 nm thick, what wave1tljv kd )42uolength is most str8- tbufz34:usyvjh g )ongly reflected at the center of the outer surface when illuminated normally by wvu f hg)j8utz4- bs3:yhite light? Assume that $n\;=\;1.34$. $\lambda$ = nm ,which is an -
