A) Diffraction pattern is not observed on the screen in the case of electrons
B) The angular width of the central maximum of the diffraction pattern will increase
C) The angular width of the central maximum will decrease
D) The angular width of the central maxi- mum will be unaffected
Correct Answer: B
Solution :
[b] Angular width \[\propto \frac{1}{\lambda }\] \[\lambda =\frac{h}{mv}\] \[\lambda \propto \frac{h}{mv}\] It velocity of electron increases then \[\lambda \] decreases hence angular width in increases.You need to login to perform this action.
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