Who produced electromagnetic waves for the first time ?
Who produced electromagnetic waves for the first time ?
Similar Questions
Explain emission of electron from metal. Define work function. Write its unit, work function of metal depend on which factors ?
Explain emission of electron from metal. Define work function. Write its unit, work function of metal depend on which factors ?
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 ............ $m/s$
Define work function of metal and write its unit.
Define work function of metal and write its unit.
Cathode rays and canal rays produced in a certain discharge tube are deflected in the same direction if
Cathode rays and canal rays produced in a certain discharge tube are deflected in the same direction if
In Bainbridge mass spectrograph a potential difference of $1000 V$ is applied between two plates distant $1$ cm apart and magnetic field in $B = 1T$. The velocity of undeflected positive ions in m/s from the velocity selector is
In Bainbridge mass spectrograph a potential difference of $1000 V$ is applied between two plates distant $1$ cm apart and magnetic field in $B = 1T$. The velocity of undeflected positive ions in m/s from the velocity selector is