The breaking of crystals along definite direction is called _____________________?
A. Cleavage
B. Symmetry
C. Isotropy
D. Homogeneity
Physics Mcqs
The bulk properties of materials such as their mode of fracture can be related to their____________________?
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 ____________________?
Coercive force is the force which opposes ____________________?
A. Demagnetization
B. Breakage
C. Extension
D. Surface cracking
The curie temperature is that at which ____________________?
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____________________?
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 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 __________________?
Materials that undergo plastic deformation before breaking are called __________________?
A. Brittle
B. Ductile
C. Amorphous
D. Polymers
A uniform steel wire of length 4m and area of cross-section 3×10-6m2 is extended by 1mm by the application of a force. If the youngs modulus of steel is 2×1011 Nm-2 the energy stored in the wire is___________________?
A uniform steel wire of length 4m and area of cross-section 3×10-6m2 is extended by 1mm by the application of a force. If the youngs modulus of steel is 2×1011 Nm-2 the energy stored in the wire is___________________?
A. 0.025J
B. 0.50J
C. 0.75J
D. 0.100J
A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?
A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?
A. 2×108 Nm-2
B. 5×106 Nm-2
C. 0.5×10-6 Nm-2
D. 0.2×10-6Nm-2
What is the SI unit of modulus of elasticity of substance ?
What is the SI unit of modulus of elasticity of substance ?
A. Nm-2
B. Jm-2
C. Nm-1
D. Being a number it has no unit.