MCQ
Control rods used in nuclear reactors are, made of
  • A
    Stainless steel
  • B
    Graphite
  • Cadmium
  • D
    Plutonium

Answer

Correct option: C.
Cadmium
c
(c)

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

Similar questions

Assertion : In Young’s double slit experiment if wavelength of incident monochromatic light is just doubled, number of bright fringe on the screen will increase.

Reason : Maximum number of bright fringe on the screen is directly proportional to the wavelength of light used.

The workfunctions of three metals $A, B$ and $C$ are $W_A, W_B$ and $W_C$ respectively. They are in the decreasing order. The correct graph between kinetic energy of emitted electron and frequency $v$ of incident radiation is
An electrical bulb rated $220\,V , 100\,W$, is connected in series with another bulb rated $220\,V$, $60\,W$.If the voltage across combination is $220\,V$, the power consumed by the $100\,W$ bulb will be about $........... W$
The value of electric permittivity of free space is:
By a cell a current of $0.9\, A$ flows through $2\, ohm$ resistor and $0.3\,A$ through $7\, ohm$ resistor. The internal resistance of the cell is ............ $\Omega$
Two infinitely long parallel wires carry currents of magnitude $I_1$ and $I_2$ are at a distance $4 cm$ apart. The magnitude of the net magnetic field is found to reach a non-zero minimum value between the two wires and $1 \,cm$ away from the first wire. The ratio of the two currents and their mutual direction is
Match the List$-I$ with List$-II$.

List $I$ List $II$
$A$ $AC$ generator $I$ Presence of both $L$ and $C$
$B$ Transformer $II$ Electromagnetic Induction
$C$Resonance phenomenon to occur $III$ Quality factor
$D$Sharpness of resonance $IV$ Mutual Inductance

Choose the correct answer from the options given below:

The magnitude of electric force on $2\, \mu \,C$ charge placed at the centre $O$ of two  equilateral triangles each of side $10 \,cm$, as shown in figure is $P$. If charge $A, B, C, D, E$ and $F$ are $2\, \mu \,C, 2\, \mu \,C, 2\, \mu \,C,-2\, \mu \,C, -2\, \mu \,C, -2\, \mu \,C$   respectively, then $P$ is :.....$N$
The phenomenon of interference is shown by
Which of the following units denotes the dimension $\frac{{M{L^2}}}{{{Q^2}}}$ where $Q$ denotes the electric charge?