### Welcome to Talha's Physics Academy

To Help Teachers and Students.

Talha's Physics Academy is an exploration environment for concepts in physics which employs free Physics Books and other linking strategies to facilitate smooth navigationThe entire environment is interconnected with thousands of links, reminiscent of a neural network.

New content for Talha's Physics Academy will be posted as it is developed,It is my intent to keep this material continuously available except for brief maintenance times.

All the Branches of Physics are covered.

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### Q. A charged rod attracts bits of cork dust which agter touching the rod , often jump violently away from it. why?

Q. A charged rod attracts bits of cork dust which agter touching the rod , often jump violently away from it. why?

Answer: Some electrons of charged rod attracts bits of cork dust when we make a contact between them. After some time, charge on the both (cork dust and rod) are same. So, they repel each other.As shwon in the figures below;

### is wave function associatd with photon?

is wave function associatd with photon?

The wave-function extend forever into all of space, the wave function is what REPRESENTS the probability of finding the particle in a set state at a set position at a set time, its a mathematical construct to describe how the universe works, a model if you will. The wave function squared is the probability so that a real number not imaginary, this has nothing to do with the space itself, exactly right about the difference the wave-function is a mathematical construct applied across space from which you can derive the probability of finding a particle. As for the wave travelling infinitely fast, in quantum mechanics particles can move faster than light but it is highly improbable due to uncertainty principle, however at long distances that would allow this the probability goes incredibly low.

No I just believe the wave function to be a mathematical representation in that it is imaginary, it doesn't make the space it presides in imaginary or the underlying wave nature of its probability distribution any less real. As for it being unsatisfactory that I would argue is merely as you are used to large things in everyday life and the idea that things behave in such an exotic manner on the small scale goes against "common" sense. There is no reason that large scale observations should hold on a small scale. I believe the mistake comes from thinking about the fundamental particles as particles, when they are unobserved they are probability distributions and only when observed (say by a photon) do they collapse to a particle view whilst being observed.