Which is not true with respect to the cathode rays
Which is not true with respect to the cathode rays
- A
A stream of electrons
- B
Charged particles
- C
Move with speed same as that of light
- D
Can be deflected by magnetic fields
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Positive rays was discovered by
Positive rays was discovered by
An electron beam is moving between two parallel plates having electric field $1.125 \times {10^{ - 6}}N/m$. A magnetic field $3 \times {10^{ - 10}}T$ is also applied so that beam of electrons do not deflect. The velocity of the electron is ............ $m/s$
An electron beam is moving between two parallel plates having electric field $1.125 \times {10^{ - 6}}N/m$. A magnetic field $3 \times {10^{ - 10}}T$ is also applied so that beam of electrons do not deflect. The velocity of the electron is ............ $m/s$
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.
What is charge on an electron ?
What is charge on an electron ?
In Thomson experiment of finding $e/m$ for electrons, beam of electron is replaced by that of muons (particle with same charge as of electrons but mass $208$ times that of electrons). No deflection condition in this case satisfied if
In Thomson experiment of finding $e/m$ for electrons, beam of electron is replaced by that of muons (particle with same charge as of electrons but mass $208$ times that of electrons). No deflection condition in this case satisfied if