Multiple Choice
While emitting light of proper frequency f0, a source moves to the right with speed c/4 relative to reference frame S.A detector, to the left of the source, measures the frequency to be f, which is greater than f0.This means: 
A) the detector is moving to the right with a speed that is greater than c/4 relative to S
B) the detector is moving to the right with a speed that is less than c/4 relative to S
C) the detector is moving to the left with a speed that is greater than c/4 relative to S
D) the detector is moving to the left with a speed that is less than c/4 relative to S
E) the detector is not moving
Correct Answer:

Verified
Correct Answer:
Verified
Q5: A source at rest emits light of
Q6: The speed of light in vacuum is
Q8: A meson moving through a laboratory of
Q13: Two events occur simultaneously at separated points
Q20: A rocket ship of rest length
Q46: A certain particle has a kinetic energy
Q49: The magnitude of the momentum of a
Q54: An electron (m = 9.11 * 10<sup>-31</sup>
Q66: Relative to reference frame 1, reference
Q66: A particle with rest mass m moves