(Answered) The reference value for the radiation of gsm 1800 mobile

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The reference value for the radiation of GSM 1800 mobile telephony operators transmitting frequency of 1800 MH

a) What wavelength is electromagnetic radiation with a frequency of 1800 MHz?

b) Determine the energy of a photon with a frequency of 1800 MHz.

c) How many photons get maximum hit a detector to the test area 1.5 dm2 under a minute if the limit is not exceeded?

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