What is meant by radioactive equilibrium? - Vidyadip

Question

What is meant by radioactive equilibrium?

✓

Answer

Radioactive Equilibrium : If the activity of a radioactive substance does not change with time during the disintegration process, then this state is called radioactive equilibrium. In this condition, the net rate of disintegration of all the elements except the first and last element of the radioactive process becomes zero at some time, i.e.
$\lambda_{A} N_{A}=\lambda_{B} N_{B}=\lambda_{C} N_{C} \ldots \ldots=\text { constant. }$
This constant is also called the activity of the radioactive sample.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Nuclei→Nuclei — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Draw the phasor diagram and graph of voltage and current versus $\omega t$ for a purely capacitive circuit and explain it.

Identify the electromagnetic waves whose wavelengths lie in the range$:$

$10^{–11} m < \lambda < 10^{–14} m$
$10^{–4} m < \lambda < 10^{–6} m$

Write one use for each.

Illustrate by drawing the helical motion of a charged particle in a uniform magnetic field and derive the equations of pitch and radius of helix. $\#\#\#$ Discuss the path of motion of a charged particle entering with velocity at angle $\theta$ with uniform magnetic field. $($where $\theta \neq 0, \frac{\pi}{2}, \pi )$

Obtain the binding energy (in MeV) of a nitrogen nucleus $\left({ }_7^{14} N\right)$, given $m\left({ }_7^{14} N\right)=14.00307 u$.

In deriving the single slit diffraction pattern, it was stated that the intensity is zero at angles of $\text{n}\lambda/\text{a}.$ Justify this by suitably dividing the slit to bring out the cancellation.

Because of the friction between the water in oceans with the earth's surface, the rotational kinetic energy of the earth is continuously decreasing. If the earth's angular speed decreases by $0.0016\ rad/ day$ in $100$ years, find the average torque of the friction on the earth. Radius of the earth is $6400\ km$ and its mass is $6.0 \times 10^{24}kg.$

An inductor is connected to a battery through a switch. Explain why the emf induced in the inductor is much larger when the switch is opened as compared to the emf induced when the switch is closed.

Explain the refraction of light from a denser medium to a rarer medium, using Huygen's principle.

A parallel beam of light of wavelength 560nm falls on a thin film of oil (refractive index = 1.4). What should be the minimum thickness of the film so that it strongly reflects the light?

Draw a circuit diagram of n-p-n transistor amplifier in CE configuration. Under what condition does the transistor act as an amplifier?