Question

How many electrons can fit in the orbital for which n=3 and l=1?

Answer 1

Principal quantum number n=3 - M shell

Azimuthal quantum number is l=1 -- P sub shell

P subshell as 3 orbitals. each can hold two electrons.

Hence total  6 electrons can fit for n=3 and l=1

Answer 2

If the value of third shell is 3 or n=3 with sub-shell value l=1.

This means each orbital will contain two electrons. There exist three p orbitals. Each electron will combine with three orbitals; finally, you will find six electrons will fit into the orbit.

The answer to this question would be 6.