Question
Download Solution PDFIf the kinetic energy of an electron becomes 16 times, then de-Broglie wavelength becomes-
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- de Broglie wavelength of electrons: Louis de Broglie theorized that not only light possesses both wave and particle properties, but rather particles with mass - such as electrons - do as well.
- The wavelength of material waves is also known as the de Broglie wavelength.
- de Broglie wavelength (λ) of electrons can be calculated from Planks constant h divided by the momentum of the particle.
λ = h/p
where h is Plank's const, λ is de Broglie wavelength, and p is the momentum.
- In terms of Kinetic energy, de Broglie wavelength of electrons:
where λ is de Broglie wavelength, m is the mass of an electron, h is Plank's const, and E is the energy of the electron.
CALCULATION:
Given that:
New Kinetic energy (E2) = 16 times the given kinetic energy = 16 E1
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