If uncertainty in position and momentum are both equal, then uncertainty in velocity is
If the position of the electron were measured with an accuracy of +0.002 nm, the uncertainty in the momentum of the electron would be
1. 5.637 × 10–23 kg m s–1
2. 4.637 × 10–23 kg m s–1
3. 2.637 × 10–23 kg m s–1
4. 3.637 × 10–23 kg m s–1
Assertion: It is impossible to determine the exact position and exact momentum of an electron simultaneously.
Reason: The path of an electron in an atom is clearly defined.
1. Both the assertion and the reason are true and the reason is the correct explanation of assertion.
2. Both the assertion and the reason are true and the reason is not the correct explanation of assertion.
3. The assertion is true but the reason is false.
4. The assertion is false but the reason is true.
The measurement of the electron position is associated with an uncertainty in momentum which is equal to 1x10-18 g cm s-1. The uncertainty in velocity of the electron will be:
(mass of an electron is 9 x 10-28 g)
1. 1 x 109 cm s-1
2. 1 x 106 cm s-1
3. 1 x 105 cm s-1
4. 1 x 1011 cm s-1