英文化学问题1)Springfield's"classicrock"radiostationbroadcastsatafrequencyof102.1MHz.Whatislengthofradiowaveinmeters?2)Abeamoflighthasawavelengthof506nanometers.Whatisthefrequencyofthelights?3)Bluelightha

Question

英文化学问题
1) Springfield's "classic rock" radio station broadcasts at a frequency of 102.1 MHz. What is length of radio wave in meters?
2) A beam of light has a wavelength of 506 nanometers. What is the frequency of the lights?
3)Blue light has a frequency of 6.89X10^14 Hertz. calculate the wavelength of blue light in nanometers.

Answer 1

这是物理问题吧
1) Springfield's "classic rock" radio station broadcasts at a frequency of 102.1 MHz.What is length of radio wave in meters?
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=2.94 m
2) A beam of light has a wavelength of 506 nanometers.What is the frequency of the lights?
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*10^14 HZ
3)Blue light has a frequency of 6.89X10^14 Hertz.calculate the wavelength of blue light in nanometers.
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)=435.4 nm