If uncertainty in position and momentum are equal, then the uncertainty in velocity is:

1. 12mhπ

2. h2π

3. 1mhπ

4. hπ

Subtopic:  Heisenberg Uncertainty Principle |
 80%
From NCERT
AIPMT - 2008
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NEET 2023 - Target Batch - Aryan Raj Singh

The measurement of the electron position is associated with
uncertainty in momentum,
which is equal to 1 x 10-18 g cm s-1.
The uncertainty in electron velocity will be
(mass of an electron is 9 x 10-28 g)-
 

1. 2 x 109 cm s-1
2. 1 x 109 cm s-1
3. 1 x 105 cms-1
4. 1 x 1011 cm s-1

Subtopic:  Heisenberg Uncertainty Principle |
 70%
From NCERT
AIPMT - 2008
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NEET 2023 - Target Batch - Aryan Raj Singh

If the mass of electron is 9.11×10-31 kg  and the planck's constant is 6.626 ×10-34 Js, then the uncertainty involved in the measurement of velocity within a distance of 0.1 Å is:

1. 5.79×106 ms-1

2. 5.79×107 ms-1

3. 5.79×108 ms-1

4. 5.79×105 ms-1

Subtopic:  Heisenberg Uncertainty Principle |
 52%
From NCERT
AIPMT - 2006
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Uncertainty in position of a e- and He is similar. If uncertainty in momentum of e- is 32×105, then uncertainty in momentum of He will be:

1. 32×105 2. 16×105
3. 8×105 4. None of the above
Subtopic:  Heisenberg Uncertainty Principle |
 78%
From NCERT
AIPMT - 1998
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh