Home
Class 11
CHEMISTRY
If the uncertainty in the position of a...

If the uncertainty in the position of an electron is zero the nucertainty in its momentum be

A

zero

B

greater than h/4 `pi`

C

less than h/ 4 `pi`

D

infinite

Text Solution

Verified by Experts

The correct Answer is:
D
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EVALUATE YOUR SELF - 5|3 Videos

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EVALUATE YOUR SELF - 6|3 Videos

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EVALUATE YOUR SELF - 3|3 Videos

  • STATES OF MATTER

    NARAYNA|Exercise A & R TYPE QUESTIONS|16 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Assertion- Reason|5 Videos

Similar Questions

Explore conceptually related problems

If uncertainty in possition of electron is zero, then the uncertainty in its momentum would be ……….

Calculate the uncertainty in the position of an electron if the uncertainty in its velocity is 5.77xx10^(5) m s^(-1) .

Knowledge Check

  • A german physicist gae a principle about the uncertainties in simultaneous measurement of position and momentum of small particles. According to that physicist. It is impossible to measure simultaneously the position and momentum of small particle with absolute accuracy or certainty. if an attempt is made to measure any one of these two quantities with higher accuracy, the other becomes less accurate. The produce of the uncertainty in position (Deltax) and uncertainty momentum (Delta p) is always constant and is equal to or greater than h//4pi , where h is Planck's constant i.e. (Deltax ) (Deltap) ge (h)/(4pi) If uncertainty in the position of an electron is zero, the uncertainty in its momentum would be

    A
    zero
    B
    `lt h//4pi`
    C
    `gt h//4pi`
    D
    Infinite

  • If uncertainty is position of an electron is zero, the uncertainty in its momentum would be

    A
    zero
    B
    `h/2pi`
    C
    `h/4pi`
    D
    infinity

  • It is not possible to determine preciselt both the position and momentum (or velocity) of a small moving particle such as electron, proton etc. This is known as Heisenber uncertainty principle. The mathemactical form of this principle is : Delta x.Delta p ge (h)/(4pi) (constant) However this principle is irrevalent in case of bigger particles such as a cup, ball, car etc., that we come across in our daily life. If the uncertainty in position of the electron is zero, the uncertainty in its momentum would be

    A
    zero
    B
    greater than `h//4pi`
    C
    less than `h//4pi`
    D
    infinite.

    • Similar Questions

    Explore conceptually related problems

    Calculate the uncertainty in the position of an electron if uncertainty in its velocity is (i) 0.001 % (ii) Zero. (The mass of electron = 9.1 xx 10^(-31) kg , velocity of electron = 300 ms^(-1))

    Calculate the uncertainty in the velocity of an electron of the uncertainty in its position is of the order of 1 Å

    If uncertainty in position of electron is zero then uncertainty its momentum would be

    The uncertainty in the position of a flying dust particle of mass 0.1 mg is found to be 10^(-4) m. The uncertainty in the position of another flying dust particle of mass 0.5 mg is also found to be same If a third flying dust particle of mass 1 mg had the same uncertainty in position as in its velocity, the uncertainty in its momentum would be

    In mathematical terms, Heisenberg's principle states that the uncertainty in the electron's position, Deltax , times the uncertainty in its momentum, Deltapx , is_____the quantity h//4pi . (i) equal to (ii) less than (iii) greater than

    Home
    Profile