All MCAT Physical Resources
Example Questions
Example Question #11 : Wavelength, Frequency, And Period
Two tuning forks, with frequencies of 442Hz and 444Hz, are struck and a beat frequency is observed. What is this beat frequency?
Possible Answers:
Correct answer:
Explanation:
The beat frequency is simply the difference between two frequencies.
We are given the frequency of each tuning fork, so we can use the equation to solve for the beat frequency.
Example Question #131 : Ap Physics 2
What is the beat frequency if f1 = 200Hz and f2 = 150Hz?
Possible Answers:
50Hz
350Hz
200Hz
100Hz
35Hz
Correct answer:
50Hz
Explanation:
Beat frequency is the difference between the two frequencies.
200Hz – 150Hz = 50Hz
Example Question #12 : Wavelength, Frequency, And Period
What is the frequency of a typical soundwave traveling at 340m/s with a wavelength of 40mm?
Possible Answers:
8500Hz
300Hz
90Hz
7500Hz
10000Hz
Correct answer:
8500Hz
Explanation:
Using the equation we can find the frequency of the soundwave.
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