List of top Questions asked in AIIMS

Which one of the following is a matching pair?
Just as Xenopsylla is to Yersenia pestis, so is:
Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to:
An astronaut is looking down on earth's surface from a space shuttle at an altitude of $400\, km$. Assuming that the astronaut's pupil diameter is $5 \,mm$ and the wavelength of visible light is $500\, nm$, the astronaut will be able to resolve linear objects of the size about
Among the following the weakest base is
$MnO _{4}^{2-}(1 mole )$ in neutral aqueous medium is disproportionated to
The ion which is not tetrahedral in shape is
Which of the following are arranged in the decreasing order of dipole moment?
The paramagnetic species is
The true statement for the acids of phosphorus, $H_3PO_2$, $H_3PO_3$ and $H_3PO_4$ is
The complex used as an anticancer agent is
Glycosides are hydrolysed in acidic conditions. Glycosides are acetals.
Among the following the strongest acid is
IUPAC name of
July 11 is observed as
A neutron makes a head-on elastic collision with a stationary deuteron. The fractional energy loss of the neutron in the collision is
A lead shot of $1\, mm$ diameter falls through a long column of glycerine. The variation of its velocity $v$ with distance covered is represented by
A black body, at a temperature of $227^{\circ} C$, radiates heat at a rate of $20 \,cal\, m ^{-2} s ^{-1} .$ When its temperature is raised to $727^{\circ} C$, the heat radiated by it in $cal \,m ^{-2} s ^{-1}$ will be closest to
A double slit experiment is performed with light of wavelength $500\, nm$. A thin film of thickness $2\, \mu m$ and refractive index $1.5$ is introduced in the path of the upper beam. The location of the central maximum will
A beam of charged particles is employed in the treatment of cancer. Charged particles on passing through a material medium lose their energy by causing ionization of the atoms along their path.
The motion of planets in the solar system is an example of conservation of
A rectangular loop carrying a current $i_{1}$, is situated near a long straight wire carrying a steady current $i_{2}$. The wire is parallel to one of the sides of the loop and is in the plane of the loop as shown in the figure. Then the current loop will
The difference in the lengths of a mean solar day and a sidereal day is about
The resistivity of a semiconductor increases with temperature. The atoms of a semiconductor vibrate with large amplitude at higher temperatures there by increasing its resistivity.
In short wave communication, waves of which of the following frequencies will be reflected back by the ionospheric layer having electron density $10^{11}$ per $m ^{3}$ ?