The speed of microwaves is 3 x 10^8 m/s and their wavelength is 3x10^-2 m. Calculate their frequency..
9 x 10^6 Hz
1 x 10^-10 Hz
4 x 10^8 Hz
1 x 10^10 Hz
Which one is answer?
2007-07-27 14:58:46 · 4 answers · asked by Chikita 1 in Science & Mathematics ➔ Physics
speed = frequency * wavelength
frequency = speed/wavelength
frequency = 3 x 10^8 m/s / 3x10^-2 m
frequency = 1 * 10^9 Hz
2007-07-27 15:49:25 · answer #1 · answered by johnny 3 · 0⤊ 0⤋
The SPEED ( VELOCITY) = Frequency x wavelegth
or
FREQUENCY = SPEED / WAVELENGTH
. . . . . . . . . . . . = (3 x 10^8) / (3 x 10^-2) = 1 x 10^10 Hz....Ans
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2007-07-31 21:32:56 · answer #2 · answered by Joymash 6 · 0⤊ 0⤋
speed = frequency * wavelength so...
3 X 1-^8 = (3 x 10^-2) * wavelength
Solve for wavelength.
2007-07-27 22:03:17 · answer #3 · answered by usc916 2 · 0⤊ 0⤋
The speed of a wave is always equal to its wavelength times its frequency.
v = wf
Solve for frequency (f).
2007-07-27 22:29:25 · answer #4 · answered by msi_cord 7 · 0⤊ 1⤋