# Simple Oscillation Question

bobacity
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.

Homework Helper
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Yes . Careful with the units.

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Be mega-careful!

malawi_glenn
bobacity
Would 0.400 μs be 4*10^7 seconds?

Homework Helper
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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.

bobacity
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?

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What power of 10 is µ ?

Last edited:
Homework Helper
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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?

Homework Helper
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Would 0.400 μs be 4*10^7 seconds?
That's mega-careless!

erobz
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That's mega-careless!
PeroK is never rude. But he can be punny.

erobz
bobacity
Yes, that is the period. What do you get for the frequency in Hz?
Would it be 2500000 Hz?