Question
Susceptibility is positive and large for a:

Answer

  1. Ferromagntic substance.
Explanation:
For ferromagnetic substances,$\chi_\text{m}$is large and positive.

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

‘X’ is a type of commercial resistor made from a mixture of clay, carbon black, and resin binder which are pressed and then molded into cylindrical rods by heating. Identify X.
A silver voltameter of resistance 2 ohm and a 3 ohm resistor are connected in series across a cell. If a resistance of 2 ohm is connected in parallel with the voltameter, then the rate of deposition of silver(a) Decreases by 25%(b) Increases by 25%(c) Increases by 37.5%(d) Decreases by 37.5%
   
   
A plano convex lens is made of glass of refractive index 1.5. The radius of curvature of its convex surface is R. Its focal length is(a) R/ 2    (b) R(c) 2R(d) 1.5 R
       
If a magnet is suspended at an angle $30^{\circ}$ to the magnetic meridian, it makes an angle of $45^{\circ}$ with the horizontal. The real dip is
A tuning fork of frequency 512Hz is vibrated with a sonometer wire and 6 beats per second are heard. The beat frequency reduces if the tension in the string is slightly increased. The original frequency of vibration of the string is:
  1. 506Hz
  2. 512Hz
  3. 518Hz
  4. 524Hz.
The mass number of a nucleus is equal to:
  1. The number of neutrons in the nucleus.
  2. The number of protons in the nucleus.
  3. The number of nucleons in the nucleus.
  4. None of them.
The de$-$Broglie wavelength of a particle accelerated with $150$ volt potential is $10^{-10} m.$ If it is accelerated by $600$ volts $p.d.,$ its wavelength will be
Which of the following is wrong for interference fringes?
$1C$ is the charge which is placed at a distance of $1m$ from the another charge of same magnitude in vacuum experiences an electrical force of repulsion of magnitude:
The relation between $I_p$ and $V_p$ for a triode is
$I_{p}=\left(0.125 V_{p}-7.5\right) mA$ , keeping the gria potential constant at $1 V$ , the value of $r_p$ will be