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3 years ago

Find the wavelength of radio waves of frequency 200kHz

2 answers:

6 0

For any wave, Wavelength = (speed) / (frequency)

For radio waves, Speed = about 3x10⁸ meters per sec ("speed of light")

So Wavelength = (3 x 10⁸ m/s) / (200 x 10³ /sec) = <em>1,500 meters</em>

Gala2k [10]3 years ago

3 0

$\lambda = \frac{c}{f}$
λ - wavelength, c - the speed of light, f - frequency

$f=200 \ kHz= 200 000 \ Hz \\ \\
\lambda=\frac{300 000 \ [\frac{km}{s}]}{200 000 \ [Hz]}=\frac{3}{2}=1.5 \ [km]$

The wavelength of these waves is 1.5 km.

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Zigmanuir [339]

Answer:

Explanation:

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q = 1.6 x 10_19C

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From F = ma

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E = magnitude of this electric ﬁeld. = 2156.3N/C

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3 years ago

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3 years ago

The magnitude E of an electric field depends on the radial distance r according to E = A/r4, where A is a constant with unit vol

Lesechka [4]

Answer:

$\Delta V = 0.053 A$

Explanation:

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$\Delta V = -\int E. dr$

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$\Delta V = - \int (\frac{A}{r^4}) .dr$

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here we know that

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3 years ago

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dolphi86 [110]

Answer:

Please find the answer in the explanation

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