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Hom up to Section [M3] 1 of 3 Question: 1 of 1 Marks: 10 Upload answer sheets i) Consider a thought experiment of locating an electron using an optical microscope The wavelength of the light source is 10 nm then estimate the uncertainty associated with the velocity of the electron. If we use 10 pm source instead; estimate the change in uncertainty for measuring velocity. (7) ii) Both Compton Scattering and Einstein's photoelectric effect are based on X-ray photon compare and explain the differences. (3) Once you upload ties from your second device, click on to check your submission Camera
Anywhere Section [M412 of 3 Question : 1 of 4 Marks : 10 Upload answer sheets i) An electron with energy of E=1.5 eV is enclosed in a potential barrier of length L 0.2 nm and energy U= 36 eV. Estimate the following. a) Approximate transmission probability(T) b) T for 2E c) T for 21, Compare and comment on the results. (7) ii) Explain the similarities with vibrations on a string with fixed length and particle in a ID box, with schematics? (3) Ons you upload Mes Soin your second device, sick on yks Camera
Section [M5] 3 of 3 Question: 1 of 1 Marks: 10 Upload answer sheets i) An He:Ne laser has a peak wavelength of 632.8 nm and has a bandwidth of 12 MHz. What is the longitudinal coherence length? Two point source is separated by a distance of 5 nm within the laser medium estimate the transverse coherence at a distance of 1 meter from the source. What is the difference with longitudinal and transverse coherence? (7) ii) Explain why LASER light have high intensity and highly directional compared to a white light source (3) Once you upload files from your second device, dick on to check your submission Camera hp