# Atoms and Nuclei · Physics · AP EAPCET

Start Practice## MCQ (Single Correct Answer)

AP EAPCET 2022 - 4th July Morning Shift

Energy of a stationary electron in the hydrogen atom is $$E=\frac{13.6}{n^2} \mathrm{~eV}$$, then the energies required to excite the electron in hydr...

AP EAPCET 2022 - 4th July Morning Shift

The graph of $$\ln \left(\frac{R}{R_0}\right)$$ versus $\ln A$ is where $$R$$ is radius of a nucleus, $$A$$ is its mass number, and $$R_0$$ is constan...

AP EAPCET 2021 - 20th August Morning Shift

The angular momentum of the orbital
electron is integral multiple of

AP EAPCET 2021 - 20th August Morning Shift

Which of the following values is the correct order of nuclear density?

AP EAPCET 2021 - 19th August Evening Shift

The ionisation potential of hydrogen atom is
13.6 V. How much energy need to be
supplied to ionise the hydrogen atom in the
first excited state?...

AP EAPCET 2021 - 19th August Evening Shift

Which of the following statement is correct?

AP EAPCET 2021 - 19th August Morning Shift

Potential energy between a proton and an electron is given by $$U=\frac{K e^2}{3 R^3}$$, then radius of Bohr's orbit can be given by