# Answer to Question #2696 in Quantum Mechanics for vanessa

Question #2696

A 11,000-watt radio station transmits at 880 kHz. Calculate the number of photons that are emitted per second.

________x 10 -______ photons

________x 10 -______ photons

Expert's answer

P = 11000 W

ν = 880 Hz

t = 1s

Energy of one photon is

E = hν

For n photons that would be

E

Also

P = E/t = nhν/t

Thus

n = Pt/hν = (11000 [W] ×1 [s])/(6.62×10

ν = 880 Hz

t = 1s

Energy of one photon is

E = hν

For n photons that would be

E

_{n}= nhνAlso

P = E/t = nhν/t

Thus

n = Pt/hν = (11000 [W] ×1 [s])/(6.62×10

^{-34}[J×s]× 880× 10^{3}[s^{(-1)}])=1.88×10^{31}photonsNeed a fast expert's response?

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## Comments

Assignment Expert16.05.13, 16:48<div align="left">Dear Bill !

Great thanks for correcting us! The mistake really took place.

</div>

Bill B13.05.13, 02:56Nice try but nu (v) is stated as 880 kHz which is 880 x 10^3 HZ. Your previous solution uses only 880 Hz.

The answer should be 1.88x10^31 photons

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