下列说法中正确的是(   ) A.物质波既是一种电磁波,又是一种

下列说法中正确的是(  

A.物质波既是一种电磁波,又是一种概率波

B.普通红光照射到某金属表面时,没有电子逸出;如改用红色激光照射该金属表面时,就会有电子逸出

C光子与一个静止的自由电子发生作用,则光子被电子散射后波长会变大

D由于原子里的核外电子不停地绕核做加速运动,所以原子要向外辐射能量,这就是原子光谱的来源

答案

C

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