MCQ
In a working nuclear reactor, Cadmium rods, (control rods) are used to
- ASpeed up neutrons
- BSlow down neutrons
- ✓Absorb some neutrons
- DAbsorb all neutrons
✓
Answer
Correct option: C.
Absorb some neutrons
c
(c)Cadmium rods absorb the neutrons so they are used to control the chain reaction process.
(c)Cadmium rods absorb the neutrons so they are used to control the chain reaction process.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A system is taken through a cyclic process represented by a circle as shown. The heat absorbed by the system is
In the following problems, indicate the correct direction of friction force acting on the cylinder, which is pulled on a rough surface by a constant force $F$. $A$ cylinder of mass $M$ and radius $R$ is pulled horizontally by a force $F$. The friction force can be given by which of the following diagrams
→A fluid container is containing a liquid of density $\rho $ is accelerating upward with acceleration a along the inclined place of inclination $\alpha$ as shown. Then the angle of inclination $ \theta $ of free surface is :
→Four rods of same material and having the same cross section and length have been joined, as shown. The temperature of junction of four rods will be........ $^oC$
→In a region, electric field varies as $E = 2x^2 -4$ where $x$ is the distance in metre from origin along $x-$ axis. A positive charge of $1\,\mu C$ is released with minimum velocity from infinity for crossing the origin, then
→Two identical narrow slits $S_1$ and $S_2$ are illuminated by light of wavelength $\lambda$ from a point source $P$. If, as shown in the diagram above the light is then allowed to fall on a screen, and if $n$ is a positive integer, the condition for destructive interference at $Q$ is that
→A charge of $8\; mC$ is located at the origin. Calculate the work done in $J$ in taking a small charge of $-2 \times 10^{-9} \;C$ from a point $P (0,0,3\; cm )$ to a point $Q (0,4\; cm , 0),$ via a point $R (0,6\; cm , g \;cm )$
→Consider a situation in which reverse biased current of a particular $P-N$ junction increases when it is exposed to a light of wavelength $\le 621\, {nm}$. During this process, enhancement in carrier concentration takes place due to generation of hole-electron pairs. The value of band gap is nearly. (In ${eV}$)
→Identify the logic gate given in the circuit :
A parallel plate capacitor with width $4\,cm$, length $8\,cm$ and separation between the plates of $4\,mm$ is connected to a battery of $20\,V$. A dielectric slab of dielectric constant $5$ having length $1\,cm$, width $4\,cm$ and thickness $4\,mm$ is inserted between the plates of parallel plate capacitor. The electrostatic energy of this system will be......... $\in_{0}\,J$. (Where $\epsilon_{0}$ is the permittivity of free space)
→