The number of angular nodes for orbital is
Explanation for correct option
(B)
Step 1. The formula of angular node
Here, is the azimuthal quantum number.
Step 2. Angular nodes for orbital
Explanation for incorrect option
The number of angular nodes for orbital is . Hence, the options (A), (C), and (D) are incorrect.
Hence, option (B) is correct. The number of angular nodes for orbital is .