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Question

De Broglie wavelength of an electron after being accelerated by a potential difference of V volt from rest is

A
λ=12.3hA
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B
λ=12.26VA
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C
λ=12.3EA
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D
λ=12.3mA
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Solution

The correct option is B λ=12.26VA
According to De broglie wavelength of an electron after being accelerated by a potential difference of V volt from rest is
λ=hp=h2mevHence,λ=12.26v
Hence, the option B is the correct answer.

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