英语翻译Which of the following is (are) present at the red end o
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英语翻译
Which of the following is (are) present at the red end of the visible spectrum?1.Slower waves than at the violet end 2.Lower energy quanta than at the violet end 3.Longitudinal waves 4.Longer wavelengths than at the violet end
Which of the following is (are) present at the red end of the visible spectrum?1.Slower waves than at the violet end 2.Lower energy quanta than at the violet end 3.Longitudinal waves 4.Longer wavelengths than at the violet end
我是在英国学物理的,
下列哪一个(或哪些)在可视光谱(红橙黄绿蓝靛紫)的红色那一端存在?
1) 比紫色那端慢的波 (不存在.因为光谱所有波长的波都是以恒定的光速旅行的)
2) 比紫色端的量子能量小的 (存在.用E=hf.E是一个量子的能量,h是普朗克常数,f是频率.红色的频率比紫色小,所以红色的能量比紫色的小)
3) 纵波 (不存在.光谱内都是横波.)
4) 比紫色那端波长要长的波 (存在.刚刚说了,红色频率比紫色频率低.用v=f l.v是波的速度,f是频率,l是波长.有此看出,频率和波长成反比.所以,红色的频率低,那么波长有更长)
下列哪一个(或哪些)在可视光谱(红橙黄绿蓝靛紫)的红色那一端存在?
1) 比紫色那端慢的波 (不存在.因为光谱所有波长的波都是以恒定的光速旅行的)
2) 比紫色端的量子能量小的 (存在.用E=hf.E是一个量子的能量,h是普朗克常数,f是频率.红色的频率比紫色小,所以红色的能量比紫色的小)
3) 纵波 (不存在.光谱内都是横波.)
4) 比紫色那端波长要长的波 (存在.刚刚说了,红色频率比紫色频率低.用v=f l.v是波的速度,f是频率,l是波长.有此看出,频率和波长成反比.所以,红色的频率低,那么波长有更长)
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