Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Chemistry Structure of Atom Atomic Structure

The de Broglie wavelength of an electron traveling at 1.00 % of speed of will be - ( speed of light = 2.998× 10⁸ m.s^-1, Planck 's constant =6.626× 10^-34 J.s and mass of electrons =9.109× 10^-31 kg

1

241 pm

2

245 pm

3

243 pm

4

343 pm

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