Question

What is the de Broglie wavelength of an electron (m = 9.11 × 10^–31 kg) in a 5.0 × 10^3-volt X-ray tube?

a. 0.017 nm

b. 0.007 nm

c. 0.028 nm

d. 0.034 nm

e. 0.014 nm

Answer #1

A. The mass of an electron is 9.11×10−31 kg. If the de Broglie
wavelength for an electron in a hydrogen atom is 3.31×10−10 m, how
fast is the electron moving relative to the speed of light? The
speed of light is 3.00×108 m/s. Calculate your answer as a
percentage.The solution was .732% B. The mass of a golf ball is
45.9 g . If it leaves the tee with a speed of 70.0 m/s , what is
its corresponding wavelength?...

Compare the de Broglie wavelength of a 0.015-kg ball moving at
40 m/s to that of an electron which has a speed of
0.0073c. Given: mass of electron = 9.11 x
10-31kg, speed of light = c = 3 x 108
m/s.

Calculate the linear momentum, and the de Broglie wavelength
of:
a) a 0.75 kg bullet that is fired at a speed of 100 m /
s,
b) a non-relativistic electron with a kinetic energy of 2.0
eV, and
c) a relativistic electron with a kinetic energy of 208
keV.
!!!! # !! Remember that for relativistic particles: ? = ? ? +
? "? and ? = ?? = ? + ?" ?, the mass
of the electron is 9.11...

Calculate the de Broglie wavelength of (a) a
0.613 keV electron (mass = 9.109 × 10-31 kg),
(b) a 0.613 keV photon, and (c) a
0.613 keV neutron (mass = 1.675 × 10-27 kg).

Calculate the de Broglie wavelength of
(a) a 0.942 keV electron (mass = 9.109 ×
10-31 kg),
(b) a 0.942 keV photon, and
(c) a 0.942 keV neutron (mass = 1.675 ×
10-27 kg).

Find the speed of the following objects given their de Broglie
wavelength:
a. An electron with a wavelength of 0.2 nm
b. A proton with a wavelength of 0.2 nm
c. A 200 g baseball with a wavelength of 0.2 nm (in m/s and
mi/hr)
d. Explain the differences.

If the de Broglie wavelength of an electron is 258 nm , what is
the kinetic energy of this electron?

If the De Broglie wavelength of an electron is equal to 450
nm calculate the velocity of the electron. Assume that the
electron's speed is non-relativistic.
Tries 0/10
If the kinetic energy of an electron is 170 eV,
calculate its De Broglie wavelength. For this non-relativistic
electron you must first calculate its velocity from the general
kinetic energy equation. Then you can find the De Broglie
wavelength of the electron.

An electron has a de Broglie wavelength of 215 nm, what is the
speed of the electron?

Calculate the de Broglie wavelength of helium nucleus (mass = 6.64
x 10^-27 kg) moving at a velocity of 2.54 x 10^7 m/s
A. 6.57 x 10^-14 m
B. 3.96 x 10^-15 m
C. 8.68 x 10^-59 m
D. 4.55 x 10^8
E. 8.64 x 10^-16

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