You have two tuning forks that have a beat frequency of 2 Hz with respect to each other. One of them has a frequency of 440 Hz, but you do not know the frequency of the other. You place a small piece of clay on the other, an amount just capable of changing the beat frequency by 1 Hz, and you repeat the experiment. This time the beat frequency is 3 Hz. From this information, what is the frequency of the other tuning fork (when it has no clay on it)?
1.442 Hz.
2.443 Hz.
3.438 Hz.
4.437 Hz.
Question 2
A large pipe organ at a church has valves that allow either one end of the pipe to be open and the other end closed, or else both ends open. If when one end is open and the other end is closed the pipe can produce a fundamental frequency of 40 Hz, what will be the fundamental frequency when both ends of the pipe are open?
1.80 Hz
2.40 Hz.
3.20 Hz.
4.10 Hz.
A melanistic jaguar is a colour morph which occurs at about 6% frequency in populations.
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recombination frequency
The frequency of bipolar illness in members of monozygotic twin pairs and in first-degree relatives
Tuning fork
Genetic drift of an allele frequency