Flag Physical Chemistry> Assertion:- Kinetic energy of two subatom...
question mark

Assertion:- Kinetic energy of two subatomic particles, having same de-Broglie’s wavelength is same.Reason:- de-Broglie’s wavelength is directly related to mass of subatomic particles.How are both statements false? (Please explain why (especially) assertion is false)

Radhika , 7 Years ago
Grade 12th pass
anser 1 Answers
sam

Last Activity: 7 Years ago

The two subatomic particles may be diferent or same.
If they are same, then their de-Broglie's wavelength will be same. i.e both proton, or both electron etc
If there are different, both will have a different mass than the other,then from our equation
{\color{Red} \lambda }= h/ \sqrt{2m(K.E)}
since  \lambda is same and h is a constant, product of 'm’ and K.E will be same. But for different 'm', KE will be different. 
 
The reason is wrong as \lambda = h/mv
thus it is inversely proportional to m
 
 

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...