Take one flower each of families Fabaceae and Solanaceae and write its semitechnical description. Also draw their floral diagrams after studying them.

Write the following steps in sequential order to determine nature of the image formed by a concave mirror where an object is placed at the centre of curvature with the help of a ray diagram. (A) Mark the position of the object infornt of the mirror at the centre of curvature. (B) Draw a diagram, which represents a concave mirror. (C) Draw two lines one passing through F and another line parallel to the principal axis and draw the path of the reflected rays. (D) Draw the principal axis and mark the centre of curvature and principal focus. (E) Mark the position of the image and study its nature.

While studying her family's history. Shikha discovers records of ancestors 12 generations back. She wonders howmany ancestors she has hand in the past 12 generations. She starts to make a diagram to helpher figure this out. The diagram soon becomes very complex. a. Make a table and a graph showing the number of ancestors in each of the 12 generations. b. Write an equation for the number of ancestors in a given generation n.

Two identical simple pendulums A and B are fixed at same point. They are displaced by very small angles alpha " and " beta ( = 2 alpha) respectively and are simultaneously released from rest at time t = 0. Collisions between the pendulum bobs are elastic and length of each pendulum is l. (a) What is the minimum number of collisions between the bobs after which the pendulum B will again reach its original position from where it was released ? (b) Find the time (t) at which B reaches its initial position for the first time after the release. (c) Write the kinetic energy of pendulum B just after n^(th) collision? Take mass of each bob to be m.

In each question below, detailed information of candidate is given. You have to carefully study the information provided in each case and take one of the following courses of actions based on the information and the conditions given above. You are not to assume anything other than the information provided in each question. All these cases are given to you as on 01.12.2013. You have to indicate your decision by marking answers to each question as follows: Ms. Suneeta is an IT Engineer with 60% marks at graduation as well as in selection test. She is working as a Software Engineer for last 3yr after completing engineering degre and has completed 27yr of age. She is willing to sign the bond of 50000.

A device X is connected across an ac source of voltage V = V_(0) sin omegat . The current throught X is given as I= I_(0)sin(omegat + (pi)/(2)) (a) Identify the device X and write the expression for its reactance. (b) Draw graph showing variation of voltage and current with time over one cycle of ac, for X. How does the reactance of the device X vary with frequency of the ac? Show this variation graphically. (d) Draw the phasor diagram for the device X.