Rankers Physics

Nucleus: Practice Problem & Solution

Curie is a unit of (1989)
Energy of gamma rays
Half-life
Radioactivity
Intensity of gamma rays

Solution Explained:

To solve this problem, we apply the core principles of Nucleus. Understanding the underlying formula is key to arriving at the correct answer below:

Curie (Ci) is a non-SI unit of radioactivity, originally defined as the activity of 1 gram of radium-226 ($3.7 \times 10^{10}$ decays per second).

Leave a Reply

Your email address will not be published. Required fields are marked *

Similar Practice Questions

Explore conceptually related problems to test your knowledge.

1. Assertion (A): It is very easy to detect neutrino in nature. Reason (R): It has high affinity to interact with matter.  
2. Assertion (A): In photo electric effect, photo electrons come out from inner orbits of atom. Reason (R): Free electrons of the metal can not absorb energy of a photon.  
3. In the reaction $^2_1H + ^3_1H \rightarrow ^4_2He + ^1_0n$, if the binding energies of $^2_1H$, $^3_1H$, and $^4_2He$ are respectively a, b and c (in MeV), then the energy (in MeV) released in this reaction is: (2005)
4. Assertion (A): The electron will be ejected from a hydrogen atom when electron beam of kinetic energy \(10.6\text{ eV}\) falls on it. Reason (R): The difference between \(n_1\) and \(n_2\) is \(10.2\text{ eV}\).  
5. When the light of frequency $2\nu_0$ (where $\nu_0$ is threshold frequency), is incident on a metal plate, the maximum velocity of electrons emitted is $v_1$. When the frequency of the incident radiation is increased to $5\nu_0$, the maximum velocity of electrons emitted from the same plate is $v_2$. The ratio of $v_1$ to $v_2$ is: (2018)