Question

In: Physics

For the following situations, indicate whether the radial velocity is positive, negative or zero: (a) Observer...

For the following situations, indicate whether the radial velocity is positive, negative or zero:

(a) Observer moving towards (stationary) source.

(b) Source moving towards (stationary) observer.

(c) Source moving away from (stationary) observer.

(d) Source and observer moving towards each other.

(e) Source and observer moving away from each other.

(f) Source moving away from observer at 10 km/s; observer moving towards source at 5 km/s.

(g) Source moving perpendicular to line of sight. Observer moving towards source.

(h) Source moving and observer moving perpendicular to line of sight but in opposite directions.

Solutions

Expert Solution

Solution:

The radial velocity Vr and speed of light in Doppler shift equation are related to change in wavelength as follows:

Vr / c = / o

The radial velocity will be positive if the distance between t the source and Observer is Increasing . The radial velocity will be Negative if the distance between source and observer is Decreasing.

genius_generous answered 2 years ago
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