List of top Questions asked in KEAM

The direction of the electric field due to a positive charge is ________.
The torque on an electric dipole consisting of charges $q$ and $-q$ of dipole moment $P$ in a uniform electric field $E$ is ________.
The electric field inside a uniformly charged spherical shell of radius R is ________.
The number of nodes and antinodes in a guitar string vibrating in the third harmonic is ________.
The principle of superposition in wave motion states that ________.
In a simple harmonic motion, ________.
For an ideal gas of molar mass M, the slope of the plot between the rms velocity ($v_{rms}$ along y-axis) and the square root of absolute temperature ($\sqrt{T}$ along x-axis) is ________.
The translational kinetic energy of an ideal gas containing N molecules at temperature T is (k - Boltzmann constant) ________.
The ratio of specific heat capacities ($C_p/C_v$) of a diatomic gas is ________.
A Carnot engine is working between $127^{\circ}C$ and $27^{\circ}C$. Keeping the sink temperature unaltered, the temperature at which the source has to be kept so as to double its efficiency is ________.
Water flows at $3~ms^{-1}$ in a horizontal pipe under a pressure of $2\times10^{5}~Nm^{-2}$. The pipe narrows to half its original diameter at one end. The speed of water (in $ms^{-1}$) in this narrow section is ________.
The angle of contact is the angle between ________.
In a liquid medium, if the depth increases, the pressure at that place ________.
The gravitational potential energy of a body of mass m on the surface of earth of mass M and radius R is ________.
The ratio of the escape velocity to the orbital velocity of the earth is ________.
The centre of mass of a thin uniform rod of length L lies at a distance (from one end) of ________.
A boy whirls a ball on a string along a horizontal circle of radius 98 cm. The angular velocity (in rad $s^{-1}$) so that its centripetal acceleration has the same magnitude as $g$ is ________.
If a spinning object contracts, its angular velocity ________.
A spring is stretched twice its initial extension. Compared to its initial value, the potential energy ________.
A car moves at a speed of $20~ms^{-1}$ under a force of 500 N. The power output of the car is ________.
A traffic light of mass $10\sqrt{3}$ kg is suspended by two cables making $30^{\circ}$ with the vertical. The tension in each cable is ________.
A tennis ball of mass 150 g is moving at $20~ms^{-1}$. A racket strikes it, reversing its direction with a final speed of $30~ms^{-1}$. If the contact time is 0.02 s, then the magnitude of the force (in N) exerted by the racket is ________.
The coefficient of friction is defined as the ratio of ________.
For the provided $v-t$ graph (decreasing line from $v_0$ to $0$), the correct statement is ________.
A car starts from rest with acceleration $a=6t (ms^{-2})$. Its velocity and displacement after 4 seconds are ________.