| A parallel beam of electrons travelling in x-direction falls on a slit of width d (see figure). If after passing the slit, an electron acquires momentum \[{{p}_{y}}\] in the y-direction then for a majority of electrons passing through the slit (h is Planck's constant): [JEE ONLINE 10-04-2015] |
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A) \[|{{p}_{y}}|d>h\]
B) \[|{{p}_{y}}|d>>h\]
C) \[|{{p}_{y}}|d<h\]
D) \[|{{p}_{y}}|d\simeq h\]
Correct Answer: B
Solution :
[b]
to go straight otherwise diffraction will occur
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