When will a scientist observe redshift in the spectrum of a distant space object?(1 point)
Responses
when the object is stationary
when the object is stationary
when the object is moving toward the scientist
when the object is moving toward the scientist
when the object is moving away from the scientist
when the object is moving away from the scientist
when the object is in the same frame of reference as the scientist
when the object is moving away from the scientist
A scientist will observe redshift in the spectrum of a distant space object when the object is moving away from the scientist.
To answer this question, we need to understand what redshift is and how it affects the spectrum of a distant space object.
Redshift is a phenomenon in which the light from a distant object is shifted towards longer wavelengths, commonly observed as a shift towards the red end of the spectrum. This occurs because the object is moving away from the observer and the wavelengths of light are stretched as the object moves further away.
So, to observe redshift in the spectrum of a distant space object, the object must be moving away from the scientist. This is because the shifting of light towards longer wavelengths only occurs when there is relative motion between the object and the observer. If the object is either stationary, moving towards the scientist, or in the same frame of reference as the scientist, the observed spectrum will not show any significant redshift.