If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is

Angle of reflection will be

Explanation:

We have given angle of incidence from the smooth surface is

So angle of incidence =

We have to find the angle of reflection

From l;aw of reflection we know that angle of reflection is equal to the angle of incidence

So angle of reflection will be equal to

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.