In an electron microscope, we wish to study particles of a diameter of about 0.10μm (about 1000 times the size of a single atom). What should be the de Broglie wavelength of the electrons?
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- An electron is moving with a speed of 3.00 x 10° m/s. What is the speed of a proton that has the same de Broglie wavelength as this electron? O 1.63 km/s O 2.18 km/s O 163 m/s 1.63 m/s O 1.36 km/sDuring a certain experiment, the de Broglie wavelength of an electron is 500 nm = 5.0 ✕ 10−7 m, which is the same as the wavelength of green light. How fast (in m/s) is the electron moving?Electrons with an energy of 0.842 eV are incident on a double slit in which the two slits are separated by 40.0 nm. What is the de Broglie wavelength (in nanometers!) of these electrons?
- An electron is accelerated from rest through a potential difference of 100 V. What is the de Broglie wavelength of the electron?In an electron microscope, we wish to study particles of diameter about 0.10 μm (about 1000 times the size of a single atom). (a) What should be the de Broglie wave- length of the electrons? (b) Through what potential dif- ference should the electrons be accelerated to have that de Broglie wavelength?The nucleus of an atom is on the order of 10-14 m in diameter. For an electron to be confined to a nucleus, its de Broglie wavelength would have to be on this order of magnitude or smaller. What would be the kinetic energy of an electron confined to this region?
- A ball has a mass of 0.0972 kg just before itstrikes the Earth after being dropped from abuilding 22.5 m tall.What is its de Broglie wavelength? The acceleration of gravity is 9.8 m/s2and Planck’sconstant is 6.62607 × 10−34 J · s.Answer in units of m.The de Broglie wavelength of a 60 g golf ball is 4.28x10−34 m. What is its speed?a) Find the de Broglie wavelength of electrons moving with an average speed of 1.55 x 105 m/s. b) Suppose these electrons are described by a wave packet of width 2.55 nm. What is the uncertainty of the momentum of the electrons?