Choose the right answer or answers multiple answers might be

Choose the right answer or answers multiple answers might be true. List all answers that you consider to be true. The joint spin state of two spin s = 1/2 particles Justify your answer above.

Solution

1. Options 1, 3, and 4 are orthogonal to the given quantum state.

2. Options 1 and 4 belongs to the orthonormal basis vectors of the given system. So they they should be orthogonal to all other basis vectors. from the innerproduct of the given state and option 3 wll give zero.