MHT CET 2024 Physics question

If the potential difference used to accelerate electrons is increased four times, by what factor does the de-Broglie wavelength associated with the electrons change?

(1)Wavelength increased two times
(2)Wavelength decreased to halfCorrect
(3)Wavelength increased four times
(4)Wavelength remains the same

Answer: (2)

Solution

The de-Broglie wavelength of an electron accelerated through potential difference is , so . If : \dfrac{λ}{\sqrt4}$ =

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Question ID VK-095598