One Short

There is one short electric dipole placed on a horizontal plane. A circle is drawn assuming centre of dipole as centre of circle and plane of the circle is perpendicular to the axis of electric dipole. Thế number of points on this circle where electric field intensity due to electric dipole is perpendicular to the axis of dipole.

There is one short magnet of magnetic moment 2.16 Am^2 , which is placed on horizontal surface with its North Pole pointing towards north. Locate null point on horizontal surface if horizontal component of earth's magnetic field is 27 mu t .

A rectangular farm has to be fenced on one long side,one short side and the diagonal.If the cost of fencing is Rs 100 per m,the area of the farm is 1200m2 and the short side is 30m long,how much would the job cost? (a) Rs 7000 (b) Rs 12000(c) Rs 14000(d) Rs 15000

Read the assertion and reason carefully to mark the correct option in question. Assertion: Sub-metacentric chromosome has one shorter and one longer arm. Reason: Metacentric chromosome have one very long and one very short arm.

One of the distinct features of Very Short Answer type questions is

There is one short electric dipole placed on a plane. A straight line is drawn on this plane passing through the centre of electric dipole making an angle theta with the axis of dipole. A point P is selected on this line at a distance ten times the length of electric dipole from centre of electric dipole. Electric field intensity at the point P makes an angle alpha with the axis of electric dipole . What will be the magnitude of (tan theta)/(tan alpha) ?