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WBJEE 2013 Physics Solved Paper

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Question : 23 of 60
 
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The de Broglie wavelength of an electron (mass = 1 × 10–30 kg, charge = 1.6 × 10–1 C) with a kinetic energy of 200 eVis (Planck’s constant = 6.6 × 10–34 J s)
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