A) Diffraction pattern is not observed on the screen in the case of electrons
B) the angular width of the central maxima of the diffraction pattern will increase
C) the angular width of the central maxima will decrease
D) the angular width of the central maxima will remain same
Correct Answer: C
Solution :
For Debroglie equation, \[\lambda =\frac{h}{p}\]as speed of \[{{e}^{-1}}\] increases, \[\lambda \] decreases. In single slit diffraction pattern, the angular width of the central maxima \[(2\theta ),\] is given by \[\theta =\frac{\lambda }{a}\]where a is width of slit. As \[\lambda \] decreases, \[\theta \] decreases
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