Kinetic Energy Using Debroglie wavelength?
Find the kinetic energy of an electron whose de Broglie wavelength is 1.5 A.
Find the kinetic energy of an electron whose de Broglie wavelength is 1.5 A.
Lalith Kumar
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lambda(γ = h/p)
From E=1/2 * m * v^2
2E = m v^2
2Em = (m v)^2
2Em = p^2 p=momentum
p = (2Em) ^ 0.5
h/lambda = (2Em) ^0.5
we know the mass of electron substituting 9.10938188 × 10^ -31 kilograms and planks constant= 6.626068 × 10^ -34 we get the value of E.....................