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.Management Sciences
Category: Physics Of Solids
Materials in which valence electrons are tightly bound to their atoms at low temperature are called___________________?
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A. Semi conductor
B. Super conductors
C. Insulators
D. Conductor
Very weak magnetic fields are detected by___________________?
A. Squids
B. Magnetic resonance imaging (MRI)
C. Magnetometer
D. Oscilloscope
In simple cube one atom or molecule lies at its______________________?
A. Force corners
B. Nine corners
C. Eight corners
D. Six corners
Holes can exist in____________________?
A. Conductors
B. Insulators
C. Semi conductors
D. All of the above
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 breaking of crystals along definite direction is called _____________________?
A. Cleavage
B. Symmetry
C. Isotropy
D. Homogeneity
A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?
A. (F1+F2) (121+122)
B. (F1+F2) (122-112)
C. (F1+F2) (12-11)
D. (F1+F2) (12-11)
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