JEE Advanced Model Paper 16 with solutions for online practice

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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
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