A charged particle oscillates about its mean equilibrium position with a frequency of 109 Hz. The electromagnetic waves produced ______. a. will have frequency of 109 Hz. b. will have frequency of 2 $\times$ 109 Hz. c. will have a wavelength of 0.3 m. d. fall in the region of radiowaves.

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a, c and d Explanation: Here we are given the frequency by which the charged particles oscillates about its mean equilibrium position, it is equal to 109 Hz. The frequency of electromagnetic waves produced by a charged particle is equal to the frequency by which it oscillates about its mean equilibrium position. So, frequency of electromagnetic waves produced by the charged particle is v = 109 Hz. Wavelength λ = c/v = (3 xx 10^8)/10^9 = 0.3 m The frequency of 109 Hz falls in the region of radiowaves.

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