An electron of mass 9.1x 10\(^{31}\) kg is travelling at a speed of 2.0 x 10\(^6\)ms\(^{-1}\). Calculate the associate wavelength of the electron. [h = 6.6....
An electron of mass 9.1x 10\(^{31}\) kg is travelling at a speed of 2.0 x 10\(^6\)ms\(^{-1}\). Calculate the associate wavelength of the electron. [h = 6.6. x 10\(^{34}\) Js]
Answer Details
The wavelength of a moving particle, such as an electron, is given by the de Broglie equation:
λ = h/mv
where λ is the wavelength, h is Planck's constant, m is the mass of the particle, and v is its velocity.
Substituting the given values, we get:
λ = (6.6 x 10^-34 J s) / (9.1 x 10^-31 kg) x (2.0 x 10^6 m/s)
Simplifying this expression, we get:
λ = 3.63 x 10^-10 m
Therefore, the associated wavelength of the electron is 3.63 x 10^-10 m
Explanation:
This question requires the application of the de Broglie equation, which relates the wavelength of a moving particle to its momentum. In this case, we are given the mass and velocity of an electron and asked to calculate its associated wavelength. We can do this by simply plugging in the given values into the de Broglie equation and solving for λ. The answer we obtain is the wavelength of the electron.