List of top Questions asked in KEAM

The diagram represents the reproductive organs of male cockroach. Choose the correct combination of labelling.
The dielectric constant of air is $ 1.006 $ . The speed of electromagnetic wave travelling in air is $ a\times {{10}^{8}}m{{s}^{-1}}, $ where a is about
Three moles of an ideal gas are in a rigid cubical box with sides of length $0.170 \,m$. The ratio of the forces that the gas exerts on each of the six sides of the box when the gas temperature are $27^{\circ}C$ and $127^{\circ}C$ is,
The depletion layer of a $ p-n $ junction:
If a monoatomic gas is compressed adiabatically to $(1/27)$th of its initial volume, then its pressure becomes
The decreasing order of acidic character among ethane $(I)$, ethene $(II)$, ethyne $(III)$ and propyne $(IV)$ is
The density of kerosene is $800 \,kg \,m^{-3}$. Its relative density is
The cytokine barrier among these is
The de-Broglie wavelength and kinetic energy of a particle is $2000 \,?$ and $1\, eV$ respectively. If its kinetic energy becomes $1\, MeV$, then its de Broglie wavelength
The correct order of decreasing electronegativity values among the elements $I-beryllium, II-oxygen, III-nitrogen$ and $IV-magnesium$, is
The crystal with metal deficiency defect is
The condition where urea accumulates in blood is:
The change in potential energy when a body of mass $ m $ is raised to a height $ nR $ from earths surface is (R = radius of the earth)
The chromosomal number in the meiocytes of housefly is:
The collector supply voltage is $6 \,V$ and the voltage drop across a resistor of $ 600\,\Omega $ . in the collector circuit is $0.6 \,V$, in a transistor connected in common emitter mode. If the current gain is $20$, the base current is
The catalytic activity of the transition metals and their compounds is ascribed to:
The cavities of alveoli of lungs are lined by
The cell organelle associated with intracellular digestion of macromolecules is
The brain capacity of Homo erectus was about:
The behaviour of the chromosomes was parallel to the behaviour of genes during meiosis was noted by
The average quantity of urea excreted in urine by man per day is:
The back flow of faecal matter in the large intestine is prevented by the presence of:
The average depth of Indian ocean is about $3000\, m$. The fractional compression, $ \frac{\Delta V}{V} $ of water at the bottom of the ocean (given that the bulk modulus of the water $ =2.2\times {{10}^{2}}N{{m}^{-2}} $ and $ g=10m{{s}^{-2}} $ ) is
The area of the region covered by the TV broadcast by a TV tower of 100 m height is (Radius of the earth = $ 6.4 \times 10^6 \, m $ )
The angular frequency of a tuned collector oscillator having an LC feedback network is