In photoelectric setup as soon as the potential reaches $V_{o}$ (stopping potential), the electrons stop coming out of the emitter plate.

False

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True

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Solution

The correct option is A False

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In Photoelectric setup as soon as the potential reaches $V_{o}$ (stopping potential), the electrons stop coming out of the emitter plate.

Q. In a photoelectric experiment, if the potential difference across the electrodes is equal to the stopping potential and the emitter plate is held at negative potential with respect to the collector plate mark the correct statement :

A potential difference created between the two plates in the photoelectric experiment setup helps to accelerate the photoelectrons, so that all of them reach the collector plate and contribute to the current. In the absence of such an accelerating potential, will there be any photocurrent at all? (Assume the photoelectrons come out perpendicular to the emitter plate.)

In the Photoelectric setup, I would like to achieve stopping potential by making one of the plates in the setup, positively charged. Which one should I charge positively?

Q. In an experiment on photoelectric effect, the stopping potential is measured for monochromatic light beams corresponding to different wavelengths. The data collected are as follows:
Wavelength (nm): 350 400 450 500 550
Stopping potential (V): 1.45 1.00 0.66 0.38 0.16
Plot the stopping potential against inverse of wavelength (1/λ) on a graph paper and find (a) Planck's constant (b) the work function of the emitter and (c) the threshold wavelength.

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In photoelectric setup as soon as the potential reaches Vo (stopping potential), the electrons stop coming out of the emitter plate.

The correct option is A False

In photoelectric setup as soon as the potential reaches $V_{o}$ (stopping potential), the electrons stop coming out of the emitter plate.