
Answer & explanation
Correct answer: option 2
$\text{Amount of energy used by hydrogen atom to become free is }E_0$
$\text{remaining energy } 3E_0 - E_0 = 2E_0 \text{will remain with electron as Kinetic Energy}$

Correct answer: option 2
$\text{Amount of energy used by hydrogen atom to become free is }E_0$
$\text{remaining energy } 3E_0 - E_0 = 2E_0 \text{will remain with electron as Kinetic Energy}$