An electron and a neutron have the same de broglie wavelength. which is true? (a) the electron has more kinetic energy and a higher speed. (b) the electron has less kinetic energy but a higher speed (c) the electron has less kinetic energy and a lower speed (d) the electron and neutron have the same kinetic energy but the electron has the higher speed (e) the neutron has more kinetic energy but the two have the same speed

Explanation:

The mass of electron,

The mass of neutron,

The De-Broglie wavelength is given by :

p is the momentum, p = m v

For electron,

For neutron,

Since, an electron and a neutron have the same de Broglie wavelength. So,

The mass of electron is less than the mass of neutron. So, the speed of electron is more than than the speed of neutron. As the kinetic energy is directly proportional to the mass. So, the correct option is (a) The electron has more kinetic energy and a higher speed.

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!