Question

In which year was the Doppler effect discovered by Austrian scientist Christian Doppler, that describes the change in frequency of any kind of sound or light wave produced by a moving source with respect to an observer?

A 1846 Correct Answer Incorrect Answer
B 1844 Correct Answer Incorrect Answer
C 1842 Correct Answer Incorrect Answer
D 1840 Correct Answer Incorrect Answer

Solution

The correct answer is C

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