Heating a magnet will ____________________?

Related Mcqs:

1. The standard vector symbol for flux density is ____________________?

   A. M
   B. L
   C. H
   D. B

2. A galvanometer basically is an instrument used to ____________________?

   A. detect current in a circuit
   B. measure current flowing through a circuit
   C. measure voltage across a circuit
   D. measure potential difference between two points in a circuit

3. A man is in a car is moving with velocity of 36km/hr. His speed with repect to the car is ____________________?

   A. 10m/s
   B. 36m/s
   C. zero
   D. infinite

4. When collision between the bodies in a system is inelastic in nature then for system ____________________?

   A. momentum changes but K.E remain conserve
   B. K.E changes but momentum remain conserve
   C. both momentum and K.E changes
   D. both momentum and K.E remain conserve

5. Velocity of sound in vacuum is ____________________?

   A. 332 ms-1
   B. 320 ms-1
   C. Zero
   D. 224 ms-1

6. Photoelectric effect was given by ____________________?

   A. Hertz
   B. Fresnel
   C. Einstein
   D. Plank

7. appearance of colour in thin films is due to ____________________?

   A. diffraction
   B. dispersion
   C. interference
   D. polarization

8. On a clear day at noon the solar energy reaching the earth is ____________________?

   A. 1.44kw/m2
   B. 1.4kw/m2
   C. 1 kw/m2
   D. none

9. The curie temperature is that at which ____________________?

   A. Semi-conductor becomes conductors
   B. Ferromagnetic becomes paramagnetic
   C. Paramagnetic becomes diamagnetic
   D. Metals become super conductor

10. Coercive force is the force which opposes ____________________?

    A. Demagnetization
    B. Breakage
    C. Extension
    D. Surface cracking