What are the wavelength ranges for the following? (a) the AM radio band (540–1600 kHz) maximum wavelength m minimum wavelength m (b) the the

Question

What are the wavelength ranges for the following? (a) the AM radio band (540–1600 kHz) maximum wavelength m minimum wavelength m (b) the the FM radio band (88–108 MHz) maximum wavelength m minimum wavelength m

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Ngọc Diệp 6 months 2021-07-26T21:51:27+00:00 1 Answers 0 views 0

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    2021-07-26T21:52:46+00:00

    Answer:

    Explanation:

    a ) AM radio band (540–1600 kHz)

    frequency = 540 kHz = 540 x 10³ Hz

    wave length = velocity of light / frequency

    = 3 x 10⁸ / 540 x 10³

    = 555.55 m

    frequency = 1600 kHz = 1600 x 10³ Hz

    wave length = velocity of light / frequency

    = 3 x 10⁸ / 1600 x 10³

    = 187.5  m

    maximum wavelength  =   555.55 m

    minimum wavelength =  187.5 m

    b )

    AM radio band (88 – 108 MHz)

    frequency = 88 MHz = 88 x 10⁶ Hz

    wave length = velocity of light / frequency

    = 3 x 10⁸ / 88 x 10⁶

    = 3.41 m

    frequency = 108 MHz = 108 x 10⁶ Hz

    wave length = velocity of light / frequency

    = 3 x 10⁸ / 108 x 10⁶

    = 2.78  m

    maximum wavelength  =   3.41 m

    minimum wavelength =  2.78 m

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