Assertion : Spin quantum number can have the value +1/2 or -1/2 . Reason : (+) sign here signifies the wave function. Assertion : Spin quantum number can have the value +1/2 or -1/2 . Reason : (+) sign here signifies the wave function. November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]