An alpha particle and a free electron both initially at rest combine to form a He - ion in its ground state with the emission of a single photon. The energy of the photon is

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

54.4 eV

27.2 eV

13.6 eV

40.8 eV

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

For He - ion, the charge on the nucleus Z = 2Energy is proportional to Z2For hydrogen atom with Z = 1, the ground state energy is 13.6 eV.For He- ion, ground state energy

Watch 3-min video & get full concept clarity

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

Get Expert Academic Guidance – Connect with a Counselor Today!

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET