Answer:
a.the number of cycles per second
Explanation:
The frequency of a sine wave is defined as the number of cycles per second.
Frequency is the inverse of the time period. The frequency of a sine wave is given by 1/TimePeriod . It is generally expressed in units of Hertz(Hz) or sec^-1. Larger the time period, lower will be the frequency and vice versa. So for higher frequency waves we need to ensure that the time period is small.
Abstraction is a technique where the general characteristics are kept and the details are hidden.
<h3>What is abstraction?</h3>
Abstraction is the way a person used in hiding information that are not needed or unwanted.
Note that one can use abstraction when using abstract class and interfaces and as such, Abstraction is a technique where the general characteristics are kept and the details are hidden.
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