Your boss asks you compare two sound waves and determine which has the higher frequency. wave a has a period of 4⁄100 second and wave b has a period of 1⁄7 second. what would you tell your boss?

a. wave b has the higher frequency. its frequency is 7 hz.
b. wave a has the higher frequency. its frequency is 25 hz.
c. wave b has the higher frequency. its frequency is 42 hz.
d. wave a has the higher frequency. its frequency is 4 hz.

Answer

B. Wave A has the higher frequency. Its frequency is 25 Hz.

Explanation

Frequency is the number of oscillation/revolutions in a unit time. On the other hand, period is the time taken to complete one oscillation/revolution.

From the definition above we can conclude that, frequency(f) is the reciprocal of period(T). That is;

f = 1/T and

T = 1/f

Wave A

f = 1/(4/100)

= 100/4

= 25 Hz

Wave B

f = 1/(1/7)

= 7/1

= 7 Hz

So, wave A has the higher frequency. Its frequency is 25 Hz.

The correct answer is Option B.

Explanation:

Frequency is defined as the reciprocal of time period. It is measured in Hertz(Hz) or .

For wave A:

Time period given is . So, frequency will be:

For wave B:

Time period given is . So, frequency will be:

From above, we can say that the frequency of wave A is more than the frequency of wave B.

Hence, the correct answer is Option B.

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this