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16 April, 18:20

If you have an instrument that uses radiowaves with a frequency of 1.0x10^11 Hz, what is the energy in Joules and the wavelength in meters? use the equations C = Av (I can't do the symbols) and E=hv

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  1. 16 April, 21:23
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    wavelength = 3*10⁻³ m

    E = 6.63*10⁻²³ j

    Explanation:

    Given dа ta:

    Frequency of wave = 1.0 * 10¹¹ Hz

    Wavelength of wave = ?

    Energy of wave = ?

    Solution:

    speed of wave = wavelength * frequency

    wavelength = speed of wave / frequency

    wavelength = 3*10⁸ m/s / 1.0 * 10¹¹ s⁻¹

    wavelength = 3*10⁻³ m

    Energy:

    E = h. f

    E = 6.63*10⁻³⁴ Kg. m²/s * 1.0 * 10¹¹ s⁻¹

    E = 6.63*10⁻²³ Kg. m²/s²

    Kg. m²/s² = j

    E = 6.63*10⁻²³ j
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