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General Chemistry 4th Edition McQuarrie . Rock.Gallogly University Science Books presented by Macmillan Learning To resolve...

Question:

General Chemistry 4th Edition McQuarrie . Rock.Gallogly University Science Books presented by Macmillan Learning To resolve a

General Chemistry 4th Edition McQuarrie . Rock.Gallogly University Science Books presented by Macmillan Learning 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, Ex, must the electrons have in order to resolve a protein molecule that is 4.50 nm in diameter? Take the mass of an electron to be 9.11 x 10-31 kg. Ek 7.36 x10-26 Incorrect

Answers

We have from de- Beoglie hypothesis h a= c √2 m Ex > 2². 2mEu h? amaz given, ha 6.62x10-34 m= 9,1x10-31 a=d=4.5nm= 6,5x10-9 (

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