Respuesta :
Answer:
Option D
Explanation:
- At the point when an object moves far from us, the light is moved to the red end of the range, where we get longer wavelengths.
- The term blue shift is utilized when light in the visible range is moved toward higher frequencies or toward the blue finish of the range, and the term red shift is utilized when light is moved toward lower frequencies or toward the red finish of the range.
- On the off chance that a star is pushing toward Earth, its light waves have all the earmarks of being pressed together.
- This moves the star's spectral lines toward the red finish of the range. The dark lines in the spectra are brought about by the ingestion of explicit wavelengths of energy by components in the star's external levels.
- If a star is coming towards us, its Fraunhofer lines will advance toward the blue end of the range.
- On the off chance that a star is moving ceaselessly from us, its Fraunhofer lines will move towards the red finish of the range.
Option D is correct. When we say that light from a distant stellar object is red-shifted, this means that the light we see D has a longer wavelength than at the source.
What is wavelength?
The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.
The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.
When an object travels away from us, the light is shifted to the red end of the spectrum, where longer wavelengths are produced.
When the light in the visible range is pushed toward higher frequencies or the blue end of the spectrum, the phrase blue shift is used.
When light is moved toward lower frequencies or the red end of the range, the word redshift is used.
If a star is approaching Earth, its light waves give the appearance of being squeezed together.
This shifts the star's spectral lines closer to the range's red end. The intake of specified wavelengths of energy causes the black lines in the spectrum.
When we say that light from a distant stellar object is red-shifted, this means that the light we see D has a longer wavelength than at the source.
Hence option D is correct.
To learn more about the wavelength refer to the link;
brainly.com/question/7143261
