Question

what is the wavelength of an electron moving with a velocity of 2.0×10⁷m/sec​

Answer 1

Answer:

ANSWER

According to de Broglie's equation, λ=mvh

Where, λ= de-Broglie wavelength and h=6.626×10−34Js=Planck's constant

m=mass of electron=9.1×10−31 kg and v= velocity=107 m/s

upon substitution we get:

λ=9.1×10−31×1076.626×10−34×3600

λ=0.727×10−10=7.27×10−11m

Hence, the correct option is A

Explanation:

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