List of top Questions asked in AIPMT- 2009

Palisade parenchyma is absent in leaves of

Which one of the following statements is correct?

Two bodies of mass $1\, kg$ and $3\, kg$ have position vectors $\hat{ i }+2 \hat{ j }+\hat{ k }$ and $-3 \hat{ i }-2 \hat{ j }+\hat{ k }$, respectively. The centre of mass of this system has a position vector:

Transgenic plants are the ones

Three concentric spherical shells have radii a, b and c (a < b < c) and have surface charge densities $\sigma$, $-\sigma$ and $\sigma$ respectively. If $ V_A, \, V_B $ and $ V_C$ denote the potentials of the three shells, then, for c = a + b , we have

There is no DNA in

The straight chain polymer is formed by

The floral formula ? ? K C A G is that of

The energy absorbed by each molecule $(A_2)$ of a substance is $4.4\times 10^{-19} J$ and bond energy per molecule is $4.0\times 10^{-19} J$The kinetic energy of the molecule per atom will be

Plasmodesmata are

Oxidation numbers of P in $PO_4^{ 3 - } $, of $S$ in $SO_4^{2 - }$ and that of $ Cr$ in $Cr_2 O_7^{ 2 - } $ respectively are

Monochromatic light of wavelength $667\, nm$ is produced by a helium neon laser. The power emitted is $9\, mW.$ The number of photons arriving per sec. on the average at a target irradiated by this beam is

Middle lamella is composed mainly of

Manganese is required in

Which one of the following is correct pairing of a body part with the kind of muscle tissue present in it?

Lithium metal crystallizes in a body centred cubic crystal. If the length of the side of the unit cell of lithium is $351\, pm,$ the atomic radius of the lithium will be

If the dimensions of a physical quantity are given by $[M^{a}L^{b}T^{c}]$, then the physical quantity will be

Global agreement in specific control strategies to reduce the release of ozone depleting substances was adopted by

Chipko movement was launched for the protection of

Biochemical oxygen demand (BOD) in a river water

$DDT$ residues are rapidly passed through food chain causing biomagnification because $DDT$ is