When will a scientist observe redshift in the spectrum of a distant space object?(1 point) Responses when the object is in the same frame of reference as the scientist when the object is in the same frame of reference as the scientist when the object is stationary when the object is stationary when the object is moving away from the scientist when the object is moving away from the scientist when the object is moving toward 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. Redshift is a phenomenon in which the wavelengths of light from an object become stretched, causing a shift towards longer, redder wavelengths. This occurs when the object is moving away from the observer, creating a Doppler effect.
To observe redshift in the spectrum of a distant space object, a scientist can use a technique called spectroscopy. Spectroscopy involves analyzing the light emitted or absorbed by an object using a spectrometer. The spectrometer splits the light into its component colors, producing a spectrum.
When a distant space object is moving away from the scientist, the observed spectrum will show a shift towards longer wavelengths. This is because as the object moves away, the wavelengths of light it emits are stretched, leading to a decrease in frequency and an increase in wavelength. This shift is towards the red end of the spectrum, hence the term "redshift."
By measuring the amount of redshift observed in the spectrum, scientists can determine the velocity at which the object is moving away. This information is crucial in understanding the expansion of the universe and studying the large-scale structure of the cosmos.
In summary, redshift in the spectrum of a distant space object is observed when the object is moving away from the scientist. Spectroscopy is the technique used to analyze the light and measure the amount of redshift, providing valuable information about the object's motion and the dynamics of the universe.