Atoms and Nuclei

According to Bohr model of hydrogen atom, only those orbits are permissible

According to Bohr model of hydrogen atom, only those orbits are permissible which satisfy the condition Options (a) mv=nh (b)…

₆C¹⁴ absorbs an energitic neutron and emits beta particles. The resulting nucleus is

₆C¹⁴ absorbs an energitic neutron and emits beta particles. The resulting nucleus is Options (a) ₇N¹⁴ (b) ₇N¹³ (c) ₅B¹³…

1 a.m.u. is equivalent to

1 a.m.u. is equivalent to Options (a) 1.6x10⁻¹² J (b) 1.6x10⁻¹⁹ J (c) 1.5x10⁻¹⁰ J (d) 1.5x10⁻¹⁹ J Correct Answer:…

A photon of wavelength 300nm interacts with a stationary hydrogen atom in ground

A photon of wavelength 300nm interacts with a stationary hydrogen atom in ground state. During the interaction, whole energy of…

As per Bohr model, the minimum energy (in eV) required to remove an electron

As per Bohr model, the minimum energy (in eV) required to remove an electron from the ground state of doubly…

A photon of energy 10.2 eV collide inelastically with hydrogen atom in ground state

A photon of energy 10.2 eV collide inelastically with hydrogen atom in ground state after few microseconds another photon of…

The rest energy of an electron is

The rest energy of an electron is Options (a) 1 MeV (b) 930 Mev (c) 0.053 MeV (d) none of…

Electrons in the atom are held to the nucleus by

Electrons in the atom are held to the nucleus by Options (a) Coulomb's forces (b) nuclear forces (c) van der…

Mass of the nucleons together in a heavy nucleus is

Mass of the nucleons together in a heavy nucleus is Options (a) greater than mass of nucleus (b) equal to…

Rutherford’s ∝ particle experiment showed that the atoms have

Rutherford's ∝ particle experiment showed that the atoms have Options (a) proton (b) nucleus (c) neutron (d) electron Correct Answer:…