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Ask iit jee aieee pet cbse icse state board experts Expert Question: Atomic Structure
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[Post New]19 Oct 2007 09:49:16 IST
    Subject: Atomic Structure
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Anupamagrawal13a (255)

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Ques-The velocity of electron of H-atom in its ground state is 2.2 X 10power6m/s.What would be the de broglie wavelength of this electron?
 
    
[Post New]19 Oct 2007 10:08:27 IST
    Subject: Re:Atomic Structure
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iitkgp_bipin (6144)

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de broglie wavelength is given by : = h/mu

where,
h is Planck's constant = 6.636 x 10-34 kg.m2/s
m is the mass of electron = 9.1 x 10-31 kg
u is the velocity of electron = 2.2 x 106 m/s

Putting these values in the above formula :

= 3.315 x 10-10 m
Bipin Kumar Dubey
Chemical Dept.
IIT Kharagpur

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