If current flowing through shell of previous objective is equal to i, then energy density at a point distance 2R from axis of the shell varies according to the graph
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(a)
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(b)
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(c)
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(d)
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(b)
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Which of the following diagrams, shows correctly the dispersion of white light by a prism
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(a)
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(b)
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(c)
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(d)
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Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is
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(a) Twice the magnetic field produced due to each of the wires |
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(b) Half of the magnetic field produced due to each of the wires |
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(c) Square of the magnetic field produced due to each of the wires |
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(d) Zero |
There is a solid sphere of radius ‘R’ having uniformly distributed charge. What is the relation between electric field ‘E’ (inside the sphere) and radius of sphere ‘R’ is
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(a) E ∝ |
(b) E ∝ |
(c) E ∝ |
(d) E ∝ |
X-rays are in nature similar to
| (a) Beta rays | (b) Gamma rays | (c) de-Broglie waves | (d) Cathode rays |
