Navigate

There are four light-weight-rod samples A,B,C,D seperately suspended by threads

There are four light-weight-rod samples A,B,C,D separately suspended by threads. A bar magnet is slowly brought near each sample and the following observations are noted
(i) A is feebly repelled
(ii) B is feebly attracted
(iii) C is strongly attracted
(iv) D remains unaffected
Which one of the following is true?

Options

(a) B is of a paramagnetic material
(b) C is of a diamagnetic material
(c) D is of a ferromagnetic material
(d) A is of a non-magnetic material

Correct Answer:

B is of a paramagnetic material

Explanation:

A → diamagnetic
B → paramagnetic
C → Ferromagnetic
D → Non magnetic

AIPMT2011
admin:

Related Questions

  1. The root mean square speed of oxygen molecule (O₂) at a certain temperature is v.
  2. Time period of oscillation of a magnet is 2 sec. When it is remagnetised
  3. The velocity of a particle at an instant is 10 ms⁻¹ and after 5 s the velocity
  4. A series combination of resistor (R), capacitor (C), is connected to an AC source
  5. Work of 3.0×10⁻⁴ joule is required to be done in increasing the size of a soap film