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Suppose you need to image the structure of a virus with a diameter of 50 nm. For a sharp image, the wavelength of the probing wave must be 5.0 nm or less. We have seen that, for imaging such small objects, this short wavelength is obtained by using an electron beam in an electron microscope. Why don't we simply use short-wavelength electromagnetic waves? There's a problem with this approach: As the wavelength gets shorter, the energy of a photon of light gets greater and could damage or destroy the object being studied. Let's compare the energy of a photon and an electron that can provide the same resolution.
A) For light of wavelength 2.5nm, what is the energy (in eV) of a single photon? In what part of the electromagnetic spectrum is this?
B) For an electron with a de Broglie wavelength of 2.5nm, what is the kinetic energy (in eV)?
This is because of the average release of about 0.03 J per kilogram each year. Show that at 500 C increase in temperature for a thermally insulated chunk of granite takes about 13.3 million years. (Assume that the specific heat of capacity c of g..
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if the box is moving at a constant speed of 0.35m/s and the coefficient of kinetic friction is 0.12. What is the magnitude of F.
The flash of a digital camera totally consumes the energy of an arrray of identical 7 F capicitors when a picture is taken, How many capicitors are in the array
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Formulate a response that addresses whether or not you agree more guidance is needed and why; what you support and do not support about the proposal and why; and illustrate what modification you would make to the guidelines.
Where Is The Net Force Zero? Three point charges lie along the x-axis. The positive charge q1 = 15.0 ?C is at the x = 2.00 m, What is the x coordinates of q3
A total charge Q = 2.7 mC is distributed uniformly over a quarter circle arc of radius a=9.3 cm, What is lamda the linear charge density along the arc
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