- AEnd-on position.
- BBroadside-on position.
- CBoth.
- DNone.
Explanation:

Points lying on the axis of a magnet are called end-on points. In our case, the point on the axis of the loop (on replacing the circular loop with an equivalent magnetic dipole) lies on the axis of the magnetic dipole or on the end-on position.
If P was the point on the axis of the loop, then it is clear from the figure that P lies on the end-on position of the equivalent magnetic dipole.
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A beam of light AO is incident on a glass slab (μ = 1.54) in a direction as shown in figure. The reflected ray OB is passed through a Nicol prism on viewing through a Nicole prism, we find on rotating the prism that
|
(a) The intensity is reduced down to zero and remains zero |
|
(b) The intensity reduces down some what and rises again |
|
(c) There is no change in intensity |
|
(d) The intensity gradually reduces to zero and then again increases |
Four capacitors are connected in a circuit as shown in the figure. The effective capacitance in μF between points A and B will be

|
(a) |
(b) 4 |
(c) 5 |
(d) 18 |
A wire cd of length l and mass m is sliding without friction on conducting rails ax and by as shown. The vertical rails are connected to each other with a resistance R between a and b. A uniform magnetic field B is applied perpendicular to the plane abcd such that cd moves with a constant velocity of

|
(a) |
(b) |
(c) |
(d) |
The hyper-metropia is a
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(a) Short-side defect |
(b) Long- side defect |
|
(c) Bad vision due to old age |
(d) None of these |
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(a) High resistance in series with galvanometer |
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(b) Low resistance in series with galvanometer |
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(c) High resistance in parallel with galvanometer |
|
(d) Low resistance in parallel with galvanometer |