and is in
a magnetic field 
. Then it's de
Broglie wavelength
(a) remains constant
(b) increases with time
(c) decreases with time
(d) increases and decreases periodically
Answer:
(a)Here, 
Force on moving electron due to
magnetic field is 
As this force is
perpendicular to 
and B 
, so the magnitude of will not change, i.e.,
momentum (=
) will remain constant in
magnitude. Hence de-Broglie wavelength 
remains
constant.
You need to login to perform this action.
You will be redirected in
3 sec
