Simple Oscillation Question

  • #1
bobacity
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Homework Statement:
A medical imaging device produces ultrasound by oscillating with a period of 0.400 μs. What is the frequency of this oscillation? Answer in units of Hz.
Relevant Equations:
f = 1/T
I think I can solve the frequency by doing 1/0.400 μs, but I'm not sure.
 

Answers and Replies

  • #2
TSny
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Yes . Careful with the units.
 
  • #3
PeroK
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Be mega-careful!
 
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  • #4
bobacity
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Would 0.400 μs be 4*10^7 seconds?
 
  • #5
TSny
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Would 0.400 μs be 4*10^7 seconds?
No. Are you sure that you typed what you meant to type? Check the sign of the power of 10.
 
  • #6
bobacity
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No. Are you sure that you typed what you meant to type? Check the sign of the power of 10.
oops, I meant 4*10^-7 seconds! Is that correct?
 
  • #7
malawi_glenn
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What power of 10 is µ ?
 
Last edited:
  • #8
TSny
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oops, I meant 4*10^-7 seconds! Is that correct?
Yes, that is the period. What do you get for the frequency in Hz?
 
  • #9
PeroK
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Would 0.400 μs be 4*10^7 seconds?
That's mega-careless!
 
  • #10
TSny
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That's mega-careless!
PeroK is never rude. But he can be punny.
 
  • #11
bobacity
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Yes, that is the period. What do you get for the frequency in Hz?
Would it be 2500000 Hz?
 
  • #12
PeroK
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Would it be 2500000 Hz?
My spreadsheet agrees with you:

Tf
4.00E-07​
2500000​
 

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