Which of the following is correct regarding Heisenberg's uncertainity principle

Options

A. It is impossible to determine momentum and position of a small particle accurately and simultaneously
B. Uncertainty principle is applicable on all conjugate pair of two variables includes whose product has dimensions of action i.e. position and momentum or energy and time or angular momentum and time
C. Uncertainty principle loses its significance in case of larger objects
D. Mathematically uncertainity principle is represented as `Deltap.Deltax = (4pi)/(nh)`

Answer

A, B, C

Explanation

`r prop n^(2)`, but `"Area" prop r^(2)`
i. Area `prop n^(4)`, i.e `A_(n) prop n^(4)`
`:' (A_(n))/(A_(1)) = n^(4) rArr log ((A_(n))/(A_(1))) = 41 log n`