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Q. An electron beam is accelerated through a potential difference of 104 volt. Find the de Broglie wavelength.
λ = 12.27 A o / √V
λ = 12.27 A o / √104
= 0.1227 A o
Ask question #Minimum 4. Determine the strength of a lens needed to allow a person with a far-sighted eye with a near point of Pnar= 2.0 m (near point means the closest distance f
Hf = mLf m - (g/lbs) *1lb = 454g Lf - latent heat of fusion - 80 kcal/kg fr water Hope
Fresnel''s diffraction due to a straight edge?
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Ratio of masses of proton and electron is: (1) Infinite (2) 1.8x10 3 (3) 1.8 (4) None of these Ans: (2) 1.8x10 3
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