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1. The energy of a neutron of de-Broglie wavelength 1 Å will be - (Ans. 8.13 eV)2. What voltage must be applied to an electron microscope to produce electrons of wavelength 1 Å -(Ans. 150 V)

OM PURI GOSAIN , 13 Years ago
Grade 12
anser 1 Answers
Chetan Mandayam Nayakar

Last Activity: 13 Years ago

According to relativity, E2=p2c2+m2c4 E is total "mass-energy", p is momentum, c is speed of light in vacuum and m is rest mass. de Broglie wavelength λ=h/p, h is Planck's constant

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