An `e^(-)` having wavelength `(18sqrt(pi)pmDeltalambda)Å`, if its uncertainty in position and wavelength are equal, then what is the minimum value of

Question

An `e^(-)` having wavelength `(18sqrt(pi)pmDeltalambda)Å`, if its uncertainty in position and wavelength are equal, then what is the minimum value of

An `e^(-)` having wavelength `(18sqrt(pi)pmDeltalambda)Å`, if its uncertainty in position and wavelength are equal, then what is the minimum value of uncertainty in wavelength of `e^(-)` in `Å`? (where `Delta lambda` = uncertainty in wavelength)

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - 5
`2NaOH+H_(2)SO_(4)rarrNa_(2)SO_(4)+2H_(2)O`
`0.04 "mol "0.02 "mol" `
mol of `H_(2)SO_(4)` consumed = 0.02
`therefore M_("dilute ")20//1000 =0.02`
Molartiy of dilute `H_(2)SO_(4)` solution = 1
`100 xx 5 = 1 xxV`
V = 500 ml diluted solution
`therefore x = 400ml H_(2)O` added.
`therefore (400)/(80) = 5`