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Answer to Question #58598 in Quantum Mechanics for sajid
Question #58598
Q. Show that energy E of a photon having wavelength λ can be written as E= (1240ev/ λ)nm.
Q. The energy needed to remove an electron from metallic sodium is 2.28ev. Does sodium show photo electric effect for red light having wavelength λ= 678 nm. What is cut off wavelength for photoelectric emission from sodium?
Q. The energy needed to remove an electron from metallic sodium is 2.28ev. Does sodium show photo electric effect for red light having wavelength λ= 678 nm. What is cut off wavelength for photoelectric emission from sodium?
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