according to deBroglie equation =h/mv
given m= 9.11 x10-31 Kg
v = 1.5 x 108 m/s
we know h= Plancks constant = 6.626 x 10-34 J.s
substituting values we get = (6.626 x 10-34) J.s/ 9.11 x10-31 Kg x 1.5 x 108 m/s
= 0.484 x 10-11 m
= 4.8 x 10-12 m
b. x.v=h/4m
=given x = 10-10m, h= 6.626 x 10-34 J.s, m= 9.11 x 10-31 Kg
substituting the values , we get v
v=h/4m x
= 6.626 x 10-34 J.s/ 4 x 3.14 x 9.11 x 10-31 x 10-10
= 0.0579 x 107 m/s
% beam velocity =[ v/ velocity of electron beam] x 100
= 0.0579 x 107 x 100/ 1.5 x 108
= 0.386
=0.39%
Physical Chemistry 5. Because of their short wavelength, the resolution of an electron microscope can be...
Be sure to answer all parts. The smallest resolution that a microscope can achieve is generally about half the wavelength of the particle probing the sample. For a visible light microscope, this means the smallest features that can be see are about 300 nm in size. The electrons in an electron microscope behave similar to light in a light microscope, having their own wavelength that can be calculated using the equation: λ = (6.626 × 10−34 J·s) / (m ×...
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy, Ek, must the electrons have in order to resolve a protein molecule that is 4.10 nm in diameter? Take the mass of an electron to be 9.11 x 10-51 kg. U Resources German physicist Werner Heisenberg related the uncertainty of an object's position (Ax) to the uncertainty in its velocity (Au) Ax > 4πmΔυ where...
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy, Ek, must the electrons have in order to resolve a protein molecule that is 3.30 nm in diameter? Take the mass of an electron to be 9.11 x 10-31 kg. Enter numeric value Ek = J
Short answer. Points as marked. Show work for credit on calculation problems Place Final Answers in the spaces provided. Round answers to the correct number of significant figures. 55) Which periodic table group or groups containćs) only gases? (1 pt) 56) Briefly define Heisenberg's Uncertainty Principle. (1 pt) 57a) Calculate the kinetic energy in J of an electron moving at 2.55 x 10* m/s b) Calculate the de Broglie wavelength of the electron. The mass of an electron is 9.11...
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