Question

Mass moment inertia of a sphere of radius r about centroidal axis

Answer 1

the Moment of inertia of sphere at the centres
of axis is 2/5 mr^2..

Answer 2

Answer:

Explanation: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.

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.