Download App

Magnetism And Matter — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsMagnetism And Matter1 Mark
MCQ
In a permanent magnet at room temperature.
  • A
    Magnetic moment of each molecule is zero.
  • B
    The individual molecules have non-zero magnetic moment which are all perfectly aligned.
  • C
    Domains are partially aligned.
  • D
    Domains are all perfectly aligned.
✓

Answer

  1. Domains are all perfectly aligned.

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

Explore more

More "M.C.Q [1M]" from Magnetism And Matter→Magnetism And Matter — all question types→Physics STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Biot-Savart law indicates that the moving electrons velocity: produce a magnetic field B such that:
→
What is the correct order in which the listed atomic models were advanced and accepted, earliest first?
→
In a charged capacitor, the energy is stored in:
→
When the current through the electromagnet of a relay reaches a particular value:
→

A 220 volt, 1000 W bulb is connected across a 110 volt mains supply. The power consumed will be

(a) 1000 W

(b) 750 W

(c) 500 W

(d) 250 W
→

The wavelength of Lyman series is

(a)  

(b)  

(c)

(d)

→
One end of a metal rod is kept in a furnace. In steady state, the temperature of the rod:
  1. Increases.
  2. Decreases.
  3. Remains constant.
  4. Is nonuniform.
→

A person sees his virtual image by holding a mirror very close to the face. When he moves the mirror away from his face, the image becomes inverted. What type of mirror he is using

(a) Plane mirror

(b) Convex mirror

(c) Concave mirror

(d) None of these
→
A superconductor exhibits perfect:
→
Figure shows a horizontal solenoid connected to a battery and a switch. A copper ring is placed on a frictionless track, the axis of the ring being along the axis of the solenoid. As the switch is closed, the ring will:
  1. Remain stationary.
  2. Move towards the solenoid.
  3. Move away from the solenoid.
  4. Move towards the solenoid or away from it depending on which terminal (positive or negative) of the battery is connected to the left end of the solenoid.

→