The number of nodes and nodal planes in 4p orbital are respectively

The number of nodes for 4p orbital is

$\text{n}-l-1=4-1-1=2$

The number of nodal planes for 4p orbital,

$\text{nodal\hspace{0.17em}plans}=l$

$\text{For\hspace{0.17em}p\hspace{0.17em}orbital,\hspace{0.17em}}l=1$

The number of nodal planes of 4p orbital is 1.

Therefore, number of nodes and nodal planes for 4p orbital is 2, 1 respectively.