If the period of a wave increases, its frequency must____________.
A. double
B. decrease
C. increase
D. stay the same
I think it is C, but I need another opinion. Please help! ^^
2006-12-04 10:37:37 · 7 answers · asked by Lizzie 5 in Science & Mathematics ➔ Physics
b) decrease
the period is "how many seconds each wave lasts" and the frequency is "how many waves per second". so if the wave is taking longer then you'll get less of them each second.
2006-12-04 10:39:52 · answer #1 · answered by rchlbsxy2 5 · 0⤊ 0⤋
The period is the distance from one apex of a wave to the next. If that increases, the wave length becomes longer. It's frequency will decrease as it will take longer to cover the increased wave distance.
2006-12-04 10:46:29 · answer #2 · answered by Cameron L 4 · 0⤊ 0⤋
B decrease. The equation for frequency is Frequency = 1/Period, which I will abbreviate as f=1/T
If the T increases, being that they are inversely related, the Frequency decreases.
2006-12-04 10:45:16 · answer #3 · answered by Anonymous · 0⤊ 0⤋
it decreases, the time between waves increases so it has to decrease in frequency. This includes sound waves, water waves, and radio waves.
2006-12-04 10:46:48 · answer #4 · answered by redhotboxsoxfan 6 · 0⤊ 0⤋
It's B.
Look at the equation: T = 1 / f
T = period
f = frequency
The period is the time it takes for one "cycle" to occur. In relation to wavelengths, that means one up and down motion back to the same point on the line. If the time it takes for this to occur is increased, it will occur less frequently, i.e. less times per second.
2006-12-04 10:47:35 · answer #5 · answered by William O 1 · 0⤊ 0⤋
f = 1/T
as t increases, f decreases
B
2006-12-04 10:40:19 · answer #6 · answered by david d 3 · 0⤊ 0⤋
I think it's B, but not sure.
2006-12-04 10:40:05 · answer #7 · answered by Anonymous · 0⤊ 0⤋