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Which of the following statements are true about edge dislocations?
P. Edge dislocations do not have an extra half plane associated with them.
Q. The Burger vectors is perpendicular to the direction.
R. Edge dislocations can avoid obstacles by cross-slip.
S. Depending on geometry, parallel edge dislocations of opposite signs can attract or repel one another.
There are seven persons Amit, Roshan, Ravi, Priya, Amrita, Arpita and Mitul. They participated in a competition where they got different positions. Amit scored the first position while Mitul scored the last position. Priya scored fourth position from the last. Ravi scored one position higher than Priya while Amrita scored one position lower than Priya. Roshan scored higher position than five of them. Who scored the second lowest position?
There are six people Kirti, Kavita, Komal, Khushi, Koel and Kritika, who got different positions in a competition. Kavita got second position while Khushi got third position from the last. Komal’s position was immediately after Kavita and immediately before Khushi. Koel does not get either the first position or the last position. Kirti also does not get the last position. Who got the last position?
Screw dislocations with jogs are __________ mobile than edge dislocations. Screw dislocations without jog move __________ from one plane to another than edge dislocation.
Given below are certain facts about the “gravitational force”. Identify the INCORRECT one. A. Gravitational force depends on the intervening medium between the objects. B. Gravitational force is a type of conservative force. C. The gravitational force between two particles acts perpendicular to the line joining the two particles.
H, Y, T, U and P got different ranks based on their marks in the semester examination and viva. H got 3rd rank in the semester exam and 5th rank in the viva. T got 5th position in the semester and 1st position in the viva. P got 2nd position in both exams and viva. Y got 1st position in semester examinations and 4th position in the viva. Who got 3rd position in the viva?
Two opposite sign dislocations are separated by 100 nm in iron with grain size 4 mm. Determine the attractive force and total force on the two dislocations? Shear modulus of iron is 80 GPa, and the lattice parameter is 2.86 Ao
The torque produced by a force depends on i. the magnitude of the force ii. the direction of the force iii. the point of application of the force relative to origin The correct answer is
The torque produced by a force depends on (i) The magnitude of the force (ii) The direction of the force (iii) The point of application of the force relative to origin
The torque produced by a force depends on
i. the magnitude of the force
ii. the direction of the force
iii. the point of application of the force relative to origin
The correct answer is