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If uncertainty in possition of electron...

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

A

0

B

`h//2pi`

C

`h//4pi`

D

infinity.

Text Solution

Verified by Experts

The correct Answer is:
D
Infinity, as `Deltax xx Deltap~~h//4pi`
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MTG IIT JEE FOUNDATION-ATOMIC STRUCTURE -Exercise (Multiple Choice Question)
  1. No two electrons in an atom of an element have

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  2. the orbital diagram in which aufbau principal is violated is :

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  3. If uncertainty in possition of electron is zero, then the uncertainty...

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  4. de-Broglie equation tells about

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  5. When an electron jumps from L to K shell -

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  6. Which of the following orbitals does not exist ?

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  7. Which of the following is not possible ?

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  8. For 4s-orbital, m has the value

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  9. Presence of three unpaired electrons in phosphorus atom can be explain...

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  10. The maximum number of electrons in a subshell is given by the expressi...

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  11. Which of the following relates to photon both as wave motion and as a...

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  12. The number of nodes in 5d orbital is

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  13. For which of the following species, Bohr theory is not applicable ?

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  14. If quantum number for last electron is n=3,l=0,m=0, then atomic number...

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  15. Which of the following transitions have minimum wavelength

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  16. Planck's constant has the dimension (unit) of

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  17. When the frequency of light incident an a metallic plate is doubled , ...

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  18. The wavelength (in nanometer) associated with a proton moving at 1.0xx...

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  19. A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavel...

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  20. The line spectrum of He^(+) ion will resemble that of :

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