A popular kitchen appliance produces electromagnetic radiationwith a frequency of 2450 MHz. With reference to Figure6.4, answer the following: (a) Estimate the wavelengthof this radiation. (b) Would the radiation produced by theappliance be visible to the human eye? (c) If the radiationis not visible, do photons of this radiation have more or lessenergy than photons of visible light? (d) Which of the followingis the appliance likely to be? (i) A toaster oven, (ii) Amicrowave oven, or (iii) An electric hotplate. [Section 6.1]

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