[问答题]
Monochromatic red light is incidumx 0x5aq-1; r1dr jlxent on a double slit, and the interferedow e85fr;a,(hz /d zxnce pattern is viewed on a screen some distance away. Explain how the fringe pattern would change if the red light source is replaced by a blue lightd war5/ zef;8 dhz,o(x source.