Dual Nature of ...

The minimum amount of energy required to emit an electron from a metal surface is called

The minimum amount of energy required to emit electrons from a metal surface is called

A plot of the kinetic energy $$(1/2 mv^2)$$ of ejected electrons as a function of the frequency (v) of incident radiation for four alkali metals $$(M_1, M_2, M_3, M_4)$$ is shown below:
The alkali metals $$M_1, M_2, M_3$$ and $$M_4$$ are respectively

Stopping potential is the negative voltage on the collector plate at which the photoelectric current just becomes __________.

The subatomic particle that is emitted from a metal surface, when it is heated is a/an _________ .

A graph of vacuum diode current $${I}_{p}$$, is plotted against the anode voltage $${V}_{p}$$ for two different temperatures $${T}_{1}$$ and $${T}_{2}$$ of the cathode, as shown in the figure below. Study the graph and answer the following questions.
For the same anode voltage, (called plate voltage), the current more when the cathode temperature changes from $${T}_{1}$$ to $${T}_{2}$$ higher temperature.

State the approximate value of work function of an alkali metal in eV.

For the same kinetic energy, the momentum shall be minimum for

Fill in the blanks :

$$1 eV $$=?