Saved Bookmarks
| 1. |
The uncertainity in position of an electron isequal to its de-broglie wave length. Theminimum percentage error in itsmeasurement of velocity under thiscircumstance will be approximately(A) 4(B) 8(C) 22(D) 18 |
|
Answer» Answer: Hi friend Hope this answer helps you The answer is 8 Explanation: According to question, uncertainty in POSITION is equal to De broglie wavelength, therefore dx= mv h
Now, according to uncertainity principle, dx.dp= 4π h
as MINIMUM is required. So, mdv.dx= 4π h
. By putting the value of dx from above, we GET v dv
= 4π 1
. So % error = v dv
×100= 4π 100
=8 |
|