All about the constants .........

 Constants are values which we use in equations....... many of us use this without even knowing why we are using it....
Now let us take a close look at the depth of constants...
Imagine a solid body which absorbs energy from  a  light source...

The solid particle absorbs the energy from the light. All the atoms absorb the energy from the light and get agitated .We know that that when a atom absorbs energy the valence electrons (electrons in the last shell or orbit) are agitated and they go to the higher energy levels(E2) from lower energy levels(E1),as they stay there for a brief period and return, the difference in energy of the energy level is emitted as photon.

 Now according to the fact E2-E1  is directly propositional to v (frequency of vibration) , or simply the energy emitted is given by E directly propositional to the frequency of vibration v. That means when the vibration

 increases the energy released by the particle increases.To make this relation equal we add a constant......

Say E(energy)=h(constant)x(frequency of vibration) v

Now the constant we have here is called the planks constant (6.626176 x 10-34 ) . when we multiply the frequency of vibration of any particle with planks constant, we will get the energy of the particular particle. That is why we  introduce constants to relate two propositional terms.....

For example imagine a particle A with frequency of vibration 5 . Then is energy will be

                                                           h =  6.626176 x 10-34 

                                                           v =  5

                                                           E =  ?

                      we know that  E = hv

                                  so......6.626176 x 10-34 (h)x  5 (v) = E 

                                         Therefore     E =  3.3 X  10-33 

Now  

 E =6.626176 x 10-34 (h)x  5 (v)

(E) 3.3 X  10-33 =    (hv) 3.3 X  10-33 

Now the relation is proved.......   if this explanation is clear for you leave your comments...... thank u