List of practice Questions

Spadix is the inflorescence of

In autumn and winter cambium produces

Which cells on grass leaves help in minimising cuticular transpiration ?

The functional unit of mammalian kidney is :

The vascular bundles in the stem are generally scattered in

Which one carries out photosynthesis without evolution of O ?

Wuchereria bancrofti is a common filarial worm. It belongs to phylum

Which of the following animals has a true coelom?

Vessels are absent in this angiosperm

The condition of erythroblastosis foetalis occurs only when

The compound(s) formed upon combustion of sodium metal in excess air is (are)

One Indian and four American men and their wives are to be seated randomly around a circular table. Then, the conditional probability that Indian m an is seated adjacent to his wife given that each American man is seated adjacent to his wife, is

Let $0(0, 0), P(3, 4)$ and $Q(6, 0)$ be the vertices of a $\Delta$ OP The point R inside the $\Delta OPQ$ is such th at the triangles $OPR, PQR$ and $OQR $ are of equal area. The coordinates of R are

A man walks a distance of 3 units from the origin towards the North-East (N 45$^{\circ}$ E) direction. From there, he walks a distance of 4 units towards the North-West (N 45$^\circ$ W) direction to reach a point P. Then, the position of P in the Arg and plane is

Let $\overrightarrow{a},\overrightarrow{b},\overrightarrow{c}$ be unit vectors such that $\overrightarrow{a}+\overrightarrow{b}+\overrightarrow{c}=\overrightarrow{0}.$ Which one of the following is correct?

The number of distinct real values of $\lambda$, for which the vectors $-\lambda^2\widehat{i}+\widehat{j}+\widehat{k}, \widehat{i}-\lambda^2\widehat{j}+\widehat{k}$ and $\widehat{i}+\widehat{j}-\lambda^2\widehat{k}$ are coplanar, is

Let $E^c$ denotes the complement of an event $E$. If $E, F, G$ are pairwise independent events with $P (G) > 0$ and $P(E \cap F \cap G)=0$ then , $P(E^c \cap F^c|G) equals$

Let $ABCD$ be a quadrilateral with area 18, with side AB parallel to the side $CD$ and $AB = 2 CD$. Let $AD$ be perpendicular to $AB$ and $CD$. If a circle is drawn inside the quadrilateral $ABCD$ touching all the sides, then its radius is

The letters of the word COCHIN are permuted and all the permutations are arranged in an alphabetical order as in an English dictionary. The number of words that appear before the word COCHIN, is

Lamellar collenchyma is seen in the stem of

In the depletion region of an unbiased $p-n$ junction diode, there are

Exoskeleton of the following consists of a chitinous cuticle

Electrons with de-Broglie wavelength $ \lambda $ fall on the target in an $X-ray$ tube. The cut-off wavelength of the emitted $X-rays$ is

The edible part in hesperidium fruit is

Commercial banana (Musa paradisica) is a