How many photons per second are emitted by the antenna, Physics

How many photons per second are emitted by the antenna

a) The work function for potassium is 2.24eV. If potassium metal is illuminated with light of wavelength 300 nm, fing the maximum kinetic energy of the photoelectrons. The speed of light is 3*10^8 m/s and Planck's constant is 6.62607*10^-34 J*s. Answer in units of eV.

b) Find the cutoff wavelength. Answer in units of nm.

2) A radio antenna radiates 9.73 W of power at 248 Hz. How many photons per second are emitted by the antenna? Planck's constant is 6.63*10^-34 J*s. Answer in units of photons/s.

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Physics: How many photons per second are emitted by the antenna

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Recent Questions Asked Physics

Q : What is the change in internal energy of the system

Q : Determine the rotational inertia of the wheel

Q : Calculate the magnitude of the current density

Q : Find temperature wheel be heated-linear thermal expansion

Q : How many photons per second are emitted by the antenna

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Ask an Expert for Answer!!

Physics: How many photons per second are emitted by the antenna

Reference No:- TGS0838683

Recent Questions Asked Physics

Q : What is the change in internal energy of the system

Q : Determine the rotational inertia of the wheel

Q : Calculate the magnitude of the current density

Q : Find temperature wheel be heated-linear thermal expansion

Q : How many photons per second are emitted by the antenna

Q : What is the relationship between the energy of the matter

Q : Probability that the total round-off error exceeds

Q : Create double pipe heat exchanger and specifying velocities

Q : Determine heat transfer during the second process

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