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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) |
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Answer» 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` |
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