List of top Questions asked in KEAM

Two trains are moving with equal speed in opposite directions along two parallel railway tracks. If the wind is blowing with speed $u$ along the track so that the relative velocities of the trains with respect to the wind are in the ratio $ 1:2, $ then the speed of each train must be
Two identical conducting spheres carrying different charges attract each other with a force $ F $ when placed in air medium at a distance $ d $ apart. The spheres are brought into contact and then taken to their original positions. Now the two spheres repel each other with a force whose magnitude is equal to that of the initial attractive force-The ratio between initial charges on the spheres is
Two identical balls A and B collide head on elastically. If the velocity of A and B before collision are $0.5\, ms^{-1}$ and 0.3 $ms^{-1}$ respectively, then their velocities after collision will be
Two identical coaxial coils $P$ and $Q$ carrying equal amount of current in the same direction are brought nearer. The current in
The Zeroth law of thermodynamics leads to the concept of
Two conducting spheres $A$ and $B$ of radius $a$ and $b$ respectively are at the same potential. The ratio of the surface charge densities of $A$ and $B$ is
The work done by a force F = ($-6x^3 $)i N, in displacing a particle from x = 4 m to x = - 2 m is
The Work-Energy theorem states that the change in
The various types of hydrides and examples of each type are given below : Choose the correct matching from the codes given below :
The vector for T-DNA is
The value of $ \frac{\cos 30{}^\circ +i\sin 30{}^\circ }{\cos 60{}^\circ -i\sin 60{}^\circ } $ is equal to
The type of placentation seen in Argemone and primrose are respectively
The ?U? shaped bone present at the base of the buccal cavity is
The reaction, is an example of
The ratio of inertial force to viscous force of a fluid is called
The process of 'eutrophication' is due to
The process used in conversion of pyruvate to acetyl CoA is
The pseudocoelomate among these is:
The process of copying genetic information from one strand of the $DNA$ into $RNA$ is termed as:
The process of delivery of the foetus is called:
The primary and secondary valencies of chromium in the complex ion, $dichlorodioxalatochromium \,(III)$, are respectively
The position of final image formed by the given lens combination from the third lens will be at a distance of [ $ {{f}_{1}}=+10\text{ }cm, $ $ {{f}_{2}}=-10cm, $ $ {{f}_{3}}=+30\text{ }cm $ ]
The potential energy of a conservative system is given by $V(x) = (x^2 - 3x)$ joule. Then its equilibrium position is at
The polarising angle for a medium is found to be $60^{\circ}$. The critical angle of the medium is
The polymeric hydride is