When will a scientist observe redshift in the spectrum of a distant space object? (1 point)
when the object is moving away from the scientist
when the object is stationary
when the object is moving toward the scientist
when the object is in the same frame of reference as the scientist
A scientist will observe redshift in the spectrum of a distant space object 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.
A scientist will observe redshift in the spectrum of a distant space object when the object is moving away from the scientist. This phenomenon is known as redshift and is a result of the Doppler effect. The Doppler effect causes a shift in the wavelength of light emitted by a moving object. When an object is moving away from an observer, the wavelength of light it emits will appear stretched or shifted towards the red end of the spectrum, hence the term "redshift". This shift occurs because the motion of the object causes the waves to be stretched out, resulting in longer wavelengths. Therefore, when a scientist observes redshift in the spectrum of a distant space object, it indicates that the object is moving away from the scientist.
