The branch of botany that deals with the study of plants providing food,fibers,and wood is known as:

Which one of the following is a secondary alcohol?

$A$ graph of magnetic flux $(\phi)$ versus current $(I)$ is drawn for four inductors $A, B, C, D$. Which inductor has the largest value of self-inductance?

The offspring produced from the cross between two pure parents are more vigorous and high-yielding. What is this phenomenon called?

$A$ point moves with uniform acceleration and $v_1, v_2$ and $v_3$ denote the average velocities in the three successive intervals of time $t_1, t_2$ and $t_3$. Which of the following relations is correct?

If $A$ and $B$ are not disjoint sets,then $n(A \cup B) =$