### 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.

### COMMON COLLECTOR CONFIGURATION OF A TRANSISTOR

COMMON COLLECTOR CONNECTION

In  this  configuration  the  input  is  applied  between the  base  and  the  collector and  the  output  is  taken  from  the  collector  and  the  emitter.  Here  the  collector  is common to both the input and the output circuits as shown in Fig.

Common Collector Transistor Circuit

In  common  collector  configuration  the  input  current  is  the  base current  IB  and  the output current is the emitter current IE. The ratio of change in emitter current to the  change in the base current is called current amplification factor.

It is represented by

COMMON COLLECTOR CIRCUIT

A test  circuit  for determining the  static characteristic  of an NPN transistor is shown in Fig. In this circuit the collector is common to both the input and the output circuits.   To   measure   the   base   and   the   emitter   currents,   milli   ammeters   are connected in series with the base and the emitter circuits. Voltmeters are connected   across the input an…