Doubt from atomic structure

#1

Question no 9 and 10

#2

Q9 Find energy by the formula hc/(wavelength). Some Energy will go into ionising the H atom rest will be its kinetic energy

#3

Q10 orbital angular momentum= √2h/2π
A Q9 the energy is less than ionisation potential therefore the electron will just move an excited state.

#4

Answer for 9th question