Flag Modern Physics> the wavelength of an electron of energy 1...
question mark

the wavelength of an electron of energy 10KeV will be ?

Sher Singh , 7 Years ago
Grade 12th pass
anser 1 Answers
Parvin

Last Activity: 7 Years ago

Electrons follow de broglies eq.Lambda =h/mv Kinetic energy =1/2 mv^2KE=1/2×mv^2m(KE)=mv^2÷2×massM (KE)=m^2×v^2÷2=(p)^2÷2P=root (2M (ke))So lambda=h÷(root2m (KE))Putting the values6.63×10^-34÷root (18.2×10^-27)On solving...we get Wavelength =0.49×10^-47

Provide a better Answer & Earn Cool Goodies

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