MCQ
A superconductor exhibits perfect:
  • A
    Ferrimagnetism.
  • B
    Ferromagnetis.
  • C
    Paramagnetism.
  • D
    Diamagnetism.

Answer

  1. Diamagnetism.

Explanation:

A superconductor exhibits perfect diamagnetism.

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-rays and gamma rays are both electromagnetic waves. Which of the following statements is true

(a) In general X-rays have larger wavelength than of gamma rays

(b) X-rays have smaller wavelength than that of gamma rays

(c) Gamma rays have smaller frequency than that of X-rays

(d) Wavelength and frequency of X-rays are both larger than that of gamma rays

A hydrogen atom in ground state absorbs 10.2eV of energy. The orbital angular momentum of the electron is increased by:

For a nucleus to be stable, the correct relation between neutron number N and Proton number Z is

(a) N > Z

(b) N = Z

(c) N < Z 

(d) N ≥ Z

What is the resistivity of a pure semiconductor at absolute zero?
A semiconducting device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops to almost zero. the device may be:
  1. An intrinsic semiconductor.
  2. A p-type semiconductor.
  3. An n-type semiconductor.
  4. A p-n junction.

The total charge induced in a conducting loop when it is moved in magnetic field depends on

(a) The rate of change of magnetic flux

(b) Initial magnetic flux only

(c) The total change in magnetic flux

(d) Final magnetic flux only

If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy required to remove the electron from the first excited state of   is

(a) 122.4 eV

(b) 30.6 eV

(c) 13.6 eV

(d) 3.4 eV

For protecting a sensitive equipment from external magnetic field, it should be:

What is the stopping potential when the metal with work function 0.6 eV is illuminated with the light of 2 eV

(a) 2.6 V

(b) 3.6 V

(c) 0.8 V  

(d) 1.4 V

The relaxation time in conductors

(a) Increases with the increase of temperature

(b) Decreases with the increase of temperature

(c) It does not depend on temperature

(d) All of sudden changes at 400 K