When electron beam passes through an electric field, they gain kinetic energy. If the same beam passes through magnetic field, then
When electron beam passes through an electric field, they gain kinetic energy. If the same beam passes through magnetic field, then
- A
Their energy increases
- B
Their momentum increases
- C
Their potential energy increases
- D
Energy and momentum both remains unchanged
Similar Questions
Write information about negative electric charge emitted from metals when $UV$ light is incident on them or metals are heated.
Write information about negative electric charge emitted from metals when $UV$ light is incident on them or metals are heated.
An electron is moving with constant velocity along $x - $ axis. If a uniform electric field is applied along $y - $ axis, then its path in the $x - y$ plane will be
An electron is moving with constant velocity along $x - $ axis. If a uniform electric field is applied along $y - $ axis, then its path in the $x - y$ plane will be
In $1897$, J.J.Thomson invented which particle ?
In $1897$, J.J.Thomson invented which particle ?
Define work function of metal and write its unit.
Define work function of metal and write its unit.
Write and explain methods to obtain emission of electron from metal.
Write and explain methods to obtain emission of electron from metal.