Define work function of metal and write its unit.
Define work function of metal and write its unit.
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Particle nature and wave nature of electromagnetic waves and electrons can be shown by
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- [AIIMS 2000]
In a parabola spectrograph, the velocities of four positive ions $P,Q,R$ and $S$ are $v_1$, $v_2$, $v_3$ and $v_4$ respectively
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Energy of electrons can be increased by allowing them
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In Thomson spectrograph experiment, four positive ions $P,Q,R$ and $S$ are situated on $Y-X$ curve a shown in the figure
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Which of the following will have the least value of $\frac{q}{m}$
Which of the following will have the least value of $\frac{q}{m}$