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. Reaso

1.	Assertion: Spin quantum number can have the value +1/2 or -1/2. Reason:(+) sign here signifies the wave function.
Answer» If both assertion and reason are true and the reason is the CORRECT EXPLANATION of the assertion If both assertion and reason are true butreason isnot the correct explanation of the assertion If assertion is true but reason is false If the assertion and reason both are false Solution :Assertion is true but reason is false. Spin angular MOMENTUM of the electron, a vector quantity, can have twoorientations (represented by + and - sign) relative to a chosen axis. These two orientation are distinguished by the spin quantum number `m_s` equals to `+1/2` or `-1/2`.These are called the two spin states of the electron and are NORMALLY represented by the two arrows `uarr` (spin up) and `darr` (spin down ) respectively.