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Home Q & A Board Science-Related Homework Help Physics Astronomy
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m671 m671
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6 years ago
The hydrogen Balmer line H has a wavelength of 486.1 nm in the laboratory. It is observed in a quasar at 2430.5 nm. What is the fractional change in wavelength or redshift z of this quasar?
 
  a. 5
  b. 0.5
  c. 0.25
  d. 4
  e. 1944.4

Question 2

The Algol paradox is explained by considering
 
  a. the degenerate nature of the hydrogen on the surface of the white dwarf.
  b. synchrotron radiation.
  c. the rate of expansion of the shock wave inside the supernova.
  d. the rotation rate of a neutron star.
  e. mass transfer between the two stars in a binary system.

Question 3

The hydrogen Balmer line H has a wavelength of 486.1 nm in the laboratory. It is observed in a quasar at 2430.5 nm. What is the change in wavelength (in nm) of this quasar? Is it a redshift or blueshift?
 
  a. 0; no change
  b. 2430.5; redshift
  c. 486.1; blue shift
  d. 1944.4; blueshift
  e. 1944.4; redshift
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AlexMoreAlexMore
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6 years ago
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m671 Author
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#2
6 years ago
Electric Light Bulb All of these are right, thanks!
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