The light from an object moving tangentially (to your left or right)will exhibit:
A)a blueshift.
B)a redshift.
C)a shift in peak wavelength towards the red.
D)a shift in peak wavelength towards the blue.
E)no shift.

Question

Quizplus · Accepted Answer

When an object moves tangentially (to your left or right) relative to the observer, the motion is perpendicular to the line of sight. This means there is no component of the velocity directly towards or away from the observer, which is required for a Doppler shift (redshift or blueshift) in light. Therefore, there will be no shift in the light's wavelength or frequency.

The Light from an Object Moving Tangentially (To Your Left