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For an incoming ray of light of vacuum wavelength 589 nm, fill in the unknown values in the following table.

  1.  For an incoming ray of light of vacuum wavelength 589 nm, fill in the unknown values in the following table.
   from(medium)     to(medium)       0i       0r
----------------------------------------------------
a.  flint glass      crown glass    25.0       ?
b.  air                  ?          14.5      9.80
c.  air               diamond       31.6       ?
2.  The smallest insects that a bat can detect are approximately the size of one wavelength of the sound the bat makes.  What is the minimum frequency of sound waves required for the bat to detect an insect that is 0.57 cm long?  (Assume the speed of sound is 340 m/s.)
   Please show the work done, formulas used and the answers.  Thank you!

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