JEE Advanced Model Paper 16 with solutions for online practice

In a hypothetical atom, a negatively charged particle having a charge of magnitude 3eand mass 3m revolves around a proton. Here, e is the electronic charge and m is theelectronic mass. Mass of proton may be assumed to be much larger than that of thenegatively charged particle, thus the proton is at rest. This “ atom” obeys Bohr’spostulate of quantization of angular momentum, that is mvr = n (

h

2π

) . It is given that forthe first Bohr orbit of hydrogen atom: radius of orbit is r0 speed of electron is V0 , and total energy is - E0