A) electron
B) neutron
C) both a and b
D) none of these
Correct Answer: C
Solution :
According to De-Broglie hypothesis all matter has a wave like nature and wavelength \[(\lambda )\]and momentum (p) or particle are related by: \[\lambda =\frac{h}{p}\] Where h is planck's constant Also, \[p=m\upsilon \] \[\therefore \] \[\lambda =\frac{h}{m\upsilon }\Rightarrow 1\propto \frac{1}{m}\] Mass of electron is \[9.1\times {{10}^{-31}}kg\]and of proton is \[1.6\times {{10}^{-27}}kg,\] hence mass of electron is less than that of proton, 50 electron will have greater wavelength.
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