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At dawn and dusk, large amount of blue and violet light(shorter wavelength) has been scattered so, the light that is recieved by an observer is mostly of a longer wavelength and therefore appears to be red.
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Yes, if the angle between the two vectors is more than 90o but less than 2700. (cosΘ is negative)
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- Statement; true
- Statement; false
- Statement; true
- Interrogative sentence; not a statement
- Imperative sentence; not a statement
- Exclamatory sentence; not a statement
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2 Answers
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Happy Mother's Day, sir.