图13-5-6所示为单色光源发出的光经一狭缝,照射到光屏上,可观察到

13-5-6所示为单色光源发出的光经一狭缝,照射到光屏上,可观察到的图象是(    )

13-5-6

答案

解析:单色光源经狭缝产生衍射,衍射图样是中间亮而宽的明纹,两边是明暗相间较窄的条纹,只有A符合这些特点.

答案:A

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