A radioactive nucleus of mass M emits a photon of frequency v and the nucleus recoils.
A radioactive nucleus of mass M emits a photon of frequency v and the nucleus recoils. The recoil energy will…
7 years ago
Radioactivity
The radioactivity of a certain material drops to 1/16 of the initial value in 2 hours.
The radioactivity of a certain material drops to 1/16 of the initial value in 2 hours. The half-life of this…
7 years ago
Which one of the following statements is true, if half-life of a radioactive substance
Which one of the following statements is true, if half-life of a radioactive substance is 1 month? Options (a) 7/8th…
7 years ago
₉₂U²³⁵ undergoes successive disintegrations with the end product of ₈₂P²⁰³
₉₂U²³⁵ undergoes successive disintegrations with the end product of ₈₂P²⁰³. The number of α and β-particles emitted are Options (a)…
7 years ago
A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei
A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei as another sample S₂…
7 years ago
The half-life period of a radio-active element X is same as the mean life time
The half-life period of a radio-active element X is same as the mean life time of another radio-active element Y.…
7 years ago
In gamma ray emission from a nucleus
In gamma ray emission from a nucleus Options (a) only the proton number changes (b) both the neutron number and…
7 years ago
Solar radiation is
Solar radiation is Options (a) transverse electromagnetic wave (b) longitudinal electromagnetic wave (c) both longitudinal and transverse electromagnetic waves (d)…
7 years ago
The ‘rad’ is the correct unit used to report the measurement of
The 'rad' is the correct unit used to report the measurement of Options (a) the rate of decay of radioactive…
7 years ago
Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state
Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of…
7 years ago