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Author Question: The hydrogen Balmer line H has a wavelength of 486.1 nm in the laboratory. It is observed in a ... (Read 105 times)

Themember4

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on: Jul 27, 2018
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.


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mochi09

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Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

e


Themember4

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

isabelt_18

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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