A particle has a linear momentum p and position vector r. the angular momentum of this particle about the origin will not be zero under the conditions

Options

A. p=0
B. p is perpendicular to r and does not cross r
C. p is anti-parallel to r
D. the particle passes through the origin.

Answer

B

Explanation

`vec(L)=vec(r)xxvec(p)=r p sin theta`
If `p=0 rArr L=0`
`in` is `0, pi rArr L=0`
if `r=0 rArr L=0`