Three STd booths situated at P,Q and R is the fiure are operated by handicaped ersons. These three booths are equidistant from each other
Find `angleQPR`

Draw equipotential surfaces due to a point q>o.Are these surfaces equidistant from each. Other? If not, explain why.

There are two factories located one at place P and the other at place Q. From these locations, a certain commodity is to be delivered to each of the three depots situated at A, B and C. The weekly requirements of the depots are respectively 5,5 and 4 units of the commodity while the production capacity of the factories at P and Q are respectively 8 and 6 units. The cost of transportation per unit is given below : How many units should be transported from each factory to each depot in order that the transportable cost is minimum. When will be the minimum transportation cost?

Let P , Q and R are three co-normal points on the parabola y^2=4ax . Then the correct statement(s) is /at

Two isolated metallic solid spheres of radii R and 2R are charged, such that both of these have same charge density. The spheres are located far away from each other and connected by a thin conducting wire. Find the new charge density on the bigger sphere.

A circular park of radius 20 m is situated in a colony. Three boys Ankur, Syed and David are sitting at equal distance on its boundary each having a toy telephone in his hands to talk each other. Find the length of the string of each phone.

At a stage of their cycle, ascomycetes fungi produce the fruiting bodies bodies like apothecium, perithecium or cleistothecium. How are these three types of fruiting bodies different from each other ?

Three married couples are to be seated in a row having six seats in a cinema hall. If spouses are to be seated next to each other, in how many ways can they be seated ? Find also the number of ways of their seating if all the ladies sit together.

If three points P, Q, R are taken at random on the circumference of a circle, the chance that do not lie on the same semicircle is

Three normals are drawn from the point (a,0) to the parabola y^2=x . One normal is the X-axis . If other two normals are perpendicular to each other , then the value of 4a is

Two equal and opposite charges (+q and -q) are situated at x distance from each other. The value of potential at very far point will depend on