A. Conductors
B. Insulators
C. Semi conductors
D. All of the above
Related Mcqs:
- Nuclear forces exist between ___________________?
A. Proton-proton
B. Proton-neutron
C. Neutron-neutron
D. All of the above - Electron cannot exist in the nucleus it is confirmed by observing that______________?
A. It does emit radiation
B. Its size as compare to proton and neutron is very small
C. No antiparticle of electron is present
D. The velocity of electron must be very high according to uncertainty principle - What are the dimensions of stress ?
A. MLT-2
B. ML-2T-1
C. ML-1T-2
D. ML-T-1 - Which one of the following physical quantities does not have the dimensions of force per unit area ?
A. Stress
B. Strain
C. Youngs modulus
D. Pressure - Formation of large molecule by joining small molecules is_________________?
A. Fusion
B. Polymerization
C. Crystallization
D. Subtraction - The band theory of solids explains satisfactorily the nature of_________________?
A. Electrical insulators alone
B. Electrical conductors alone
C. Electrical semi conductors alone
D. All of the above - Energy needed to magnetize and demagnetize is represented by _________________?
A. Hysteresis curve
B. Hysteresis loop area
C. Hysteresis loop
D. Straight line - A wire suspended vertically from one end is stretched by attaching a weight of 20N to the lower end. The weight stretches the wire by 1mm. How much energy is gained by the wire ?
A. 0.01J
B. 0.02J
C. 0.04J
D. 1.0J - 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 - The electrons in conduction band are free to___________________?
A. Transport vibrations
B. Transport signals
C. Transport charge
D. Transport impulses
