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nateja
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Homework Statement
light signal of frequency 33 MHz is reflected off a (radio)mirror that is moving
toward you at half the speed of light. What is the reflected frequency in Hz?
Homework Equations
f_f = f*sqrt((1-v/c)/(1+v/c)
The Attempt at a Solution
The mirror and light wave are approaching you, so you use the receding/red shift equation (shown above).
but when you plug in .5c for v and f - 33MHz you get 19.1MHz as the answer which is wrong.
According to the solution, we need to get rid of the square root because "Doppler Shift from Mirror is the same". What does that mean?
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