(a) For what kinetic energy of a neutron...

(a) For what kinetic energy of a neutron will the associated de Broglie wavelength be `1.40 xx 10^(-10) m`?
(b) Also find the de Broglie wavelength of a neutron, in thermal equilibrium with matter, having an average kinetic energy of (3/2) k T at 300 K.

Verified by Experts

(a) `6.686xx10^(-21)J=4.174xx10^(-2)eV`
(b) 0.145 nm

Similar Questions

Explore conceptually related problems

The kinetic energy of an electron is 4.55xx10^(-28) kJ . Calculate the de Broglie's wavelength.

The ratio of the de-Broglie wavelengths of two particles having mass ratio 1 : 3 and kinetic energy ratio 2 : 1 is

The de Broglie wavelength associated with a ball of mass 1kg having kinetic energy 0.5J is

If the velocity of the electron is 1.6xx10^(6) "ms"^(-1) , calculate the de-Broglie wavelength associated with this electron .

Both an electron and a photon have same de-Broglie wavelength of 1 . 2. Å . The ratio of their energies is nearly

At 200^(@)C the velocity of hydrogen molecule is 2.0 xx 10^(5) cm/sec. In this case, the de-Broglie wavelength is about ________Å.

What is the (a) momentum, (b) speed, and (c) de Broglie wavelength of an electron with kinetic energy of 120 eV.

A line in Lyman series of hydrogen atom has a wavelength of 1.03xx10^(-7)m . What is the initial energy level of the electron ?