(b) Sketch and write the mathematical expression of the wavefunction of an electron occupying the level n-6 in a 1ID infinite quantum well of width 3.5x10" m. (c) A radio station broadcasts on a frequency of 200 kHz by using a 200 kW transmitter. ) Estimate the number of photons striking a I square metre aerial cach second at a distance of 1000 km. (ii) What is the energy (J) and momentum (kg m/s) of the photons? (iii) What is the number of photons emitted in 2 second by the transmitter?
(b) Sketch and write the mathematical expression of the wavefunction of an electron occupying the level n-6 in a 1ID infinite quantum well of width 3.5x10" m. (c) A radio station broadcasts on a frequency of 200 kHz by using a 200 kW transmitter. ) Estimate the number of photons striking a I square metre aerial cach second at a distance of 1000 km. (ii) What is the energy (J) and momentum (kg m/s) of the photons? (iii) What is the number of photons emitted in 2 second by the transmitter?
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Transcribed Image Text:(b) Sketch and write the mathematical expression of the wavefunction of an electron occupying
the level n 6 in a 1ID infinite quantum well of width 3.5x10" m.
(c) A radio station broadcasts on a frequency of 200 kHz by using a 200 kW transmitter.
() Estimate the number of photons striking a 1 square metre acrial each second at a
distance of 1000 km.
(ii) What is the energy () and momentum (kg m/s) of the photons?
(ii) What is the number of photons emitted in 2 second by the transmitter?
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