问题
填空题
电磁波在真空中的传播速度约为 m／s，哈密人民广播电台某调频台发射的电磁波的频率为98.7 MHz，该电磁波的波长是 m。(计算结果保留两位小数)
答案
m／s， 3.04 m
电磁波在真空中的传播速度是3×108m/s，
电磁波的波长：
。
故答案为：3×108；3.04
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电磁波在真空中的传播速度约为 m／s，哈密人民广播电台某调频台发射的电磁波的频率为98.7 MHz，该电磁波的波长是 m。(计算结果保留两位小数)
m／s， 3.04 m
电磁波在真空中的传播速度是3×108m/s，
电磁波的波长：
。
故答案为：3×108；3.04
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