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Which of the following statements are true regarding diamagnetic substances? (i) Diamagnetic substances are feebly repelled by magnets (ii) Diamagnetic substances move from stronger field side to weaker field side (iii) Permeability of diamagnetic substances is greater than one. (µ > 1)
Among the following properties describing diamagnetism identify the property that is wrongly stated a) diamagnetic material do not have permanent magnetic moment. b) diamagnetism is explained in terms of electromagnetic induction c) diamagnetic materials have a small positive susceptibility d) the magnetic moment of individual electrons neutralise each other
Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic?
Which of the following statements are true about Oxygen and Carbon molecules? Statement 1: Oxygen molecule (O2) is diamagnetic in nature. Statement 2: Carbon molecule (C2) is diamagnetic in nature.
A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic field. Hence the rod gains gravitational potential energy. The work required to do this comes from
Consider the following statements: 1. Both ferromagnetic and ferrimagnetic materials have domain structures; each domain has randomly oriented magnetic moments when no external field is applied. 2. Both ferromagnetic and ferrimagnetic materials make those domains that have a favourable orientation to the applied field grow in size. 3. The net magnetic moment in ferromagnetic materials is higher than that in ferrimagnetic materials. 4. The net magnetic moment in ferrimagnetic materials is higher than that in ferromagnetic material. Which of the above statements are correct?
Consider the following statements for piezoelectric materials: 1. All piezoelectric materials are ferroelectric materials also. 2. Piezoelectric materials have a high value of dielectric constant. Which of the above statements is/are correct?
Which one of the following are true of authentic materials for language learning? a. Materials should take into consideration the socio-cultural milieu of the region. b. Materials should provide a route map for learner to move on. c. Any materials could be taught in any region.
Consider the following statements regarding magnetic materials: 1. A diamagnetic material has no permanent dipole 2. Paramagnetic material has anti parallel orientation of equal moments with neighbouring dipoles 3. Ferrimagentic material has anti parallel orientation of unequal moments between neighbouring diploes Which of these statements are correct?
Which of the following are diamagnetic materials?