Physics, asked by ayushsinghyush209, 1 year ago

The ratio of limiting friction to the normal reaction is known as

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Answered by Pari13051

sorry for dont knowing it....

Answered by Anonymous

Answer:

The operating principle is that – caused by the photoelectric effect – photons striking a photocathode at the entrance window of a PMT produce electrons, which are then accelerated by a high-voltage field and multiplied in number within a chain of dynodes by the process of secondary emission.

Explanation:

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