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![[Post New]](/templates/default/images/icon_minipost_new.gif) 2 Jun 2007 08:29:07 IST
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i can answer only few Q
8Q)The plane where the probability of finding electron is zero is called Nodal plane
2Q) On the bases of ideas of dual nature of light L.DE BROGLIE proposed that all micro particals including the electron with high velocity r accociated with wavve nature
there fore all micro particals such as electrons,protons,atoms n even molecules moving with high speed r concidered to possses both partical nature n dual nature
Accor to Planks Quantum theory of radiation , the energy
(E) of a photon is= to hv (new)
E=hv or E=h x c/lamida
but Einsteins mass - energy equivalance
E=mc2
from both eq
hc/lamida = mc2
lamida= hc/mc2 =h/mc = h/p
(p=mc=momentum)
The above equation is applicable to photons n micro particals moving with high speed
There fore de.Broglie equation lamida=h/mv
m = mass of micro partical
v = velocity of micro partical
now let us conider the case of an electron moving with same velocity 2 x 10^5 cms sec-1 in an orbit
The wave length is calculated as
lamida= h/mv
= 6.6256 x 10^-34 /9.1x10^-31 x2 x10^3
=4x10^-7
This wavelength associated with electron in motion with high speed in an orbit can be ignored . Hence its wave nature is significance
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