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2 metallic plates P(collector) & Q(emitter) are separated by a distance of 0.10m. These r connected through an ammeter without any cell. a magnetic field B exists parallel to the plates. light of wavelengths between 400nm & 60nm falls on the emitter whose work function is 2.39eV. Calculate minimum value of B such that no current is recorded in the ammeter


2 metallic plates P(collector) & Q(emitter) are separated by a distance of 0.10m. These r connected through an ammeter without any cell. a magnetic field B exists parallel to the plates. light of wavelengths between 400nm & 60nm falls on the emitter whose work function is 2.39eV. Calculate minimum value of B
such that no current is recorded in the ammeter


Grade:11

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