In simple cube one atom or molecule lies at its______________________?
(A) Force corners
(B) Nine corners
(C) Eight corners
(D) Six corners
The breaking of crystals along definite direction is called _____________________?
(A) Cleavage
(B) Symmetry
(C) Isotropy
(D) Homogeneity
The bulk properties of materials such as their mode of fracture can be related to their____________________?
(A) Polymerization
(B) Cleavage
(C) Microstructure
(D) Dislocation
Coercive force is the force which opposes ____________________?
(A) Demagnetization
(B) Breakage
(C) Extension
(D) Surface cracking
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
Any alteration produced in shapes length or volume when a body is subjected to some external force is called____________________?
(A) Stiffness
(B) Toughness
(C) Extension
(D) Deformation
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)
Materials that undergo plastic deformation before breaking are called __________________?
(A) Brittle
(B) Ductile
(C) Amorphous
(D) Polymers
The relationship between Tesla and smaller unit Gauss of magnetic induction is given by_________________?
(A) 1T = 103 G
(B) 1T = 10-4 G
(C) 1T = 10-2 G
(D) 1T = 104 G
Which one of the following material is most suitable for making core of an electromagnet ?
(A) air
(B) steel
(C) Cu-Ni alloy
(D) soft iron