问题标题：
英文化学问题1)Springfield's"classicrock"radiostationbroadcastsatafrequencyof102.1MHz.Whatislengthofradiowaveinmeters?2)Abeamoflighthasawavelengthof506nanometers.Whatisthefrequencyofthelights?3)Bluelightha
问题描述：
英文化学问题
1)Springfield's"classicrock"radiostationbroadcastsatafrequencyof102.1MHz.Whatislengthofradiowaveinmeters?
2)Abeamoflighthasawavelengthof506nanometers.Whatisthefrequencyofthelights?
3)Bluelighthasafrequencyof6.89X10^14Hertz.calculatethewavelengthofbluelightinnanometers.
刘学莉回答：
这是物理问题吧
1)Springfield's"classicrock"radiostationbroadcastsatafrequencyof102.1MHz.Whatislengthofradiowaveinmeters?
某电台频率是102.1兆赫兹,求波长
102.1*10^6=v/l=3*10^8/l
波长l=2.94m
2)Abeamoflighthasawavelengthof506nanometers.Whatisthefrequencyofthelights?
某种光波长506纳米,求频率
频率=光速/波长=3*10^8/(506*10^-9)=5.93*10^14HZ
3)Bluelighthasafrequencyof6.89X10^14Hertz.calculatethewavelengthofbluelightinnanometers.
蓝光频率6.89*10^14赫兹,求波长为多少纳米
波长=光速/频率=3*10^8/(6.89*10^14)=435.4nm
查看更多
