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einsteindude einsteindude
wrote...
Posts: 5058
9 years ago
The difference between lightwaves approaching and lightwaves receding is
A) when approaching, lightwaves have higher frequency; when receding their frequency is lower.
B) when approaching, lightwaves have lower frequency; when receding their frequency is higher.
C) the frequency of approaching lightwaves remain constant, while receding lightwaves are invisible.
D) There is no difference.
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
Authors:
Read 975 times
2 Replies
Replies
wrote...
9 years ago
When a light wave is approaching it is bunched up. When it is receding it is stretched out
Answer accepted by topic starter
bio_manbio_man
wrote...
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Posts: 33268
9 years ago
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