2.1) Outer space is filled with photons. The frequencydistribution of this radiation matches that of a blackbody at atemperatur near 2.7K. Find the peak frequency and a correspondingwavelength of this radiation.
2.2) A bea of light with a frequency range of 3.01*10^14Hz-6.10*10^14 Hz is incident on a metal surface. If the workfunction of the metal surface is 2.20 eV what is the max kineticenergy of the photoelectrons ejected from this surface?
2.3) A photon after being scattered from a free electron at restmoves at an angle of 120 degrees with respect to the incidentdirection. If the wavelenth of the incident proton is .611 nm, whatis the kinetic energy of the recoiling electron?
2.4) Suppose the uncertainty in an electrons position is .15 nm.What is the minimum uncertainty in the electrons kineticenergy?
Lifesaver will be awarded to anyone who helps!
2.1) Outer space is filled with photons. The frequencydistribution of this radiation matches that of a blackbody at atemperatur near 2.7K. Find the peak frequency and a correspondingwavelength of this radiation.
2.2) A bea of light with a frequency range of 3.01*10^14Hz-6.10*10^14 Hz is incident on a metal surface. If the workfunction of the metal surface is 2.20 eV what is the max kineticenergy of the photoelectrons ejected from this surface?
2.3) A photon after being scattered from a free electron at restmoves at an angle of 120 degrees with respect to the incidentdirection. If the wavelenth of the incident proton is .611 nm, whatis the kinetic energy of the recoiling electron?
2.4) Suppose the uncertainty in an electrons position is .15 nm.What is the minimum uncertainty in the electrons kineticenergy?
Lifesaver will be awarded to anyone who helps!
