
Как изменится положительный заряд цинковой пластины, если ее освещать ультрафиолетовыми лучами?


Ответы на вопрос




Effect of Ultraviolet Light on Positive Charge of Zinc Plate
When a zinc plate is exposed to ultraviolet (UV) light, the positive charge on the plate is likely to increase. This is due to the photoelectric effect, where photons of sufficient energy (such as UV light) can cause the ejection of electrons from a material, leading to a net positive charge on the material.
The process can be explained as follows: 1. Photoelectric Effect: When the zinc plate is exposed to UV light, the photons can transfer their energy to the electrons in the zinc plate, causing them to be ejected from the surface of the plate. This results in a net positive charge on the plate.
2. Increase in Positive Charge: As a result of the photoelectric effect, the zinc plate will accumulate a greater positive charge due to the loss of electrons caused by the UV light exposure.
In summary, the exposure of a zinc plate to ultraviolet light is likely to increase its positive charge due to the photoelectric effect, leading to a net positive charge on the plate.


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