Question

During a class room discussion, one of your friends argued that, “we can’t determine both position and velocity of an electron”. 

1. Is it true? 

2. Which principle is behind your answer? 

3. State it.

Answer 1

1. Yes. It is true. 

2. Heisenberg’s uncertainty principle. 

3. Heisenberg’s uncertainty principle states that it is not possible to determine simultaneously both position and momentum of a microscopic moving particle such as electron with absolute accuracy.