CBSE Class 11-science Answered

Dear Hoozan,

• Heisenberg’s uncertainty principle: It states that it is impossible to simultaneously determine, the exact position and momentum (or velocity) of an electron.

Where

∆x—Uncertainty in position

∆v_x—Uncertainty in velocity

∆p_x—Uncertainty in momentum

This means that if the position of electron is known, the velocity of electrons will be uncertain. On the other hand, if the velocity of electron is precisely known, the position of electrons will be uncertain.

• Heisenberg’s uncertainty principle rules out the existence of definite paths or trajectories of electrons and other similar particles.