A farmer has a field in the form of a parallelogram PQRS as shown in the figure. He took the mid- point A on RS and joined it to points P and Q. In how many parts of field is divided? What are the shapes of these parts ?
The farmer wants to sow groundnuts which are equal to the sum of pulses and paddy. How should he sow? State reasons?

Into how many parts is large intestine distributed ?

Find the position vector of the mid point of the vector joining the points P(2,3,4) and Q(4,1,-2).

Find the slope of a line, which passes through the origin, and the mid-point of the line segment joining the points P(0, -4) and B(8, 0) .

Three infinitely long charge sheets are placed as shown in figure. The electric field at point P is

Find the slope of a line, which passes through the origin, and the mid-point of the line segment joining the points P (0,- 4) and B (8,0).

A dipole is placed at origin of coordinate system as shown in figure, find the electric field at point P (0, y) .

On the basis of shape, how many groups of bacteria are formed and what are their names?

A man has 10 friends, in how many ways he can invite one or more of them to a party?

A narrow tube is bend in the form of a circle of radius R, as shown in the figure. Two small holes S and D are made in the tube at the positions right angle to each other. A source placed at S generated a wave of intensity I_(0) which is equally divided into two parts : One part travels along the longer path, while the other travels along the shorter path. Both the parts wave meet at the point D where a detector is placed. The maximum value of lamda to produce a maxima at D is given by :-