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A beam of electron is used YDSE experime...

A beam of electron is used `YDSE` experiment . The slit width is d when the velocity of electron is increased ,then

A

No interference is observed

B

Fringe width increases

C

Fringe width decreases

D

Fringe width remains same

Text Solution

Verified by Experts

The correct Answer is:
C
`lambda = (h)/(P) = (h)/(mv) `
As velocity is increased, then ` lambda ` decreases
Since ` beta prop lambda , :.` Fringe width decreases
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