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The photoelectrons emitted from a metal surface

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Important Questions on Dual Nature of Matter and Radiation
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The stopping potential as a function of frequency of incident radiation is plotted for two different photo electric surfaces and The graphs show the work function of is

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Light of wavelength falls on a sensitive plate with photoelectric work function of . The kinetic energy of the photoelectron emitted will be

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In a photoemissive cell with exciting wavelength , the fastest electron has speed . If the exciting wavelength is changed to the speed of the fastest emitted electron will be

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When intensity of incident light increases

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If wavelength of a photon is then its energy will be

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Work function a metal is then, its threshold wavelength will be :

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A radio station is transmitting the waves of wavelength Radiation capacity of the transmitter is Find out the number of photons which are emitting in per unit time.

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The de Broglie wavelength of a particle accelerated with potential is . If it is accelerated by , then its wavelength will be:
