List of top Questions asked in AIIMS

A balloon is filled at $27^{\circ}C$ and $1$ atm pressure by $50\, m^3\,He$. At -$3^{\circ}C$ and $0.5$ atm pressure, the volume of $He$ will be
The moment of inertia of a circular loop of radius $R$, at a distance of $R/2$ around a rotating axis parallel to horizontal diameter of loop is
The particle of mass $50\, kg$ is at rest. The work done to accelerates it by $20\,m/s$ in $10\,s$ is
$1$ mole of gas occupies a volume of $200 \,mL$ at $100 \,mm$ pressure. What is the volume occupied by two moles of gas at $400 \,mm$ pressure and at same temperature?
In designing, a beam for its use to support a load. The depression at centre is proportional to (where, $Y$ is Young?s modulus)
In air the value of the total electric flux emitted from unit positive charge is
Freon used as refrigerant is
The weight of iron which will be converted into its oxide $\left( Fe _{3} O _{4}\right)$ by the action of $18\, g$ of steam on it will be (At. wt. of $Fe =56$ )
Protons or hydrogen ions produced by photolysis of water accumulate in the lumen of thylakoids. Photolysis of water takes place in inner membrane of thylakoid.
: Equal moles of different substances contain same number of constituent particles. : Equal weights of different substances contain the same number of constituent particles.
: Higher the molal depression constant of the solvent used, higher the freezing point of the solution. : Depression in freezing point does not depend on the nature of the solvent.
A small uncharged metallic sphere is positioned exactly at a point midway between two equal and opposite point charges. If the sphere is slightly displaced towards the positive charge and released then
The oxidation state of chromium in the final product formed by the reaction between $KI$ and acidified potassium dichromate solution is
Find the number of stereoisomers of 1,2-dihydroxy cyclopentane.
: Both Grignard reagent and dialkyl cadmium react with acid chlorides to form tert-alcohols. : Grignard reagents are as reactive as dialkyl cadmium.
: A catalyst increases the rate of a reaction. : In presence of a catalyst, the activation energy of the reaction decreases.
In angiosperms, transport of food and water is more efficient than gymnosperms and pteridophytes. In angiosperms longitudinally arranged sieve elements and vessels with perforated end walls are present.
If maximum speed of a particle in SHM is given by $V_m$, what is its average speed?
In simple harmonic motion, loss of kinetic energy is proportional to
Which of the following equation does not represent a SHM?
For a first order gas phase reaction- $A_{\left(g\right)} \to 2B_{\left(g\right)} + C_{\left(g\right)}$ P be initial pressure of A and P the total pressure at time 't'. Integrated rate equation is
Gauss's law can't be used to calculate electric field near an electric dipole. Electric dipole don't have symmetrical charge distribution.
A small drop of mercury is spherical but bigger drops are oval in shape. surface tension of liquid decreases with increase in temperature.
Which one of the following species is diamagnetic in nature?
: Methyl cyanide has higher boiling point than methyl isocyanide. : Dipole moment of methyl cyanide is higher than that of methyl isocyanide.