Question

A relativistic electron has a de Broglie wavelength of 646 fm (1 fm = 10−15 m). 1) Determine its velocity

Answer #1

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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.

(a) An electron has a de Broglie wavelength of 2 pm. Calculate
the relativistic velocity of the electron in terms of c.
(b) A beam of 1.9 eV electrons bombards a sample of hydrogen. If
a spectral line of the Balmer series is observed, calculate the
initial energy level, n-i of the electron.

Find the de Broglie wavelength of an electron with a speed of
0.95c. Take relativistic effects into account.

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...

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?...

1. a) What is the de Broglie wavelength of an electron that is
accelerated through an electrical potential difference of 20 volts?
b) What is the de Broglie wavelength of a proton that is
accelerated through an electrical potential difference of 20
volts?

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

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

1) How will the wavelength of de Broglie electron change if you
increase it
speed 3 times?
2) How much is the wavelength of de Broglie proton different from
the wavelength
where is the Broglie electron if they move at the same speed?
3) Will the wavelength of the particle change if it enters the
potential field?

If the de Broglie wavelength of a proton is 70.0 fm,
(a) what is the speed of the proton and
(b) through what electric potential would the
proton have to be accelerated to acquire this speed?

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