Question

The position of both, an electron and a helium atom is known within 1.0 nm. Further the momentum of the electron is known within 5.0 1026 kg ms1. The minimum uncertainty in the measurement of the momentum of the helium atom is

Answer 1

Answer:

The correct option is : (d) 5.0 x 10-26 kg m s-1

Explanation :

According to uncertainty principle the product of uncertainty in position and uncertainty in momentum is constant for a particle.

As, Δx = 1.0 nm for both electron and helium atom, so Δp is also same for both the particles.

Thus uncertainty in momentum of the helium atom is also 5.0 x 10-26 kg m s-1

Answer 2

Answer:

Uncertainity principle : It is defined as the position and the momentum both can not be determined simultaneously. When the position of an electron and helium atom is same and the momentum of an electron is known then the momentum of helium atom is equal to the momentum of an electron.