A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3×106 ms−1. The velocity of the particle is (Mass of electron =9.1×10−31 kg )
Held on 30 Apr 2008 · Verified 9 Jul 2026.
2.7×10−18 ms−1
9×10−2 ms−1
3×10−31 ms−1
2.7×10−21 ms−1
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