The red shift measurement of Doppler effect of galaxies indicate that the universe is:
Correct answer: A. Expanding
- A. Expanding
- B. Contracting
- C. Stationary
- D. Oscillating
Explanation
The Doppler red-shift of light observed from distant stars and galaxies gives evidence that the universe is expanding (moving away from a central point)
This question appeared on the UHS MDCAT 2016 paper, which you can sit online with every answer explained.
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Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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