- Amutual induction
- Bself induction
- Ceddy currents
- Dhysteresis
Explanation:
The property of induction of e.m.f. in the same coil when there is a change in current in it is called selfinduction.
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When light is incident on a doubly refracting crystal, two refracted rays-ordinary ray (O-ray) and extra ordinary ray (E-ray) are produced. Then
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(a) Both O-ray and E-ray are polarised perpendicular to the plane of incidence |
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(b) Both O-ray and E-ray are polarised in the plane of incidence |
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(c) E-ray is polarised perpendicular to the plane of incidence and O-ray in the plane of incidence |
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(d) E-ray is polarised in the plane of incidence and O-ray perpendicular to the plane of incidence |
The V-i graphs A and B drawn for two voltameters. Identify each graph

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(a) A for water voltameter and B for Cu voltameter |
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(b) A for Cu voltameter and B for water voltameter |
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(c) Both A and B represents Cu voltameter |
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(d) None of these |
The idea of matter waves was given by
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(a) Davisson and Germer |
(b) de-Broglie |
(c) Einstein |
(d) Planck |