Question

If principal Quantum no of an atom is 3 ,then the angular guantum no is

Answer 1

hope it helps
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Answer 2

you have to answer it using bohr formula:
nh/2pi.
so your ans is:
3 X 6.626X10* -34 / 2X3.1416
=3.1636x10*-34.

hope it was helpful.
THANK YOU.