List of top Questions asked in KEAM- 2024

For a smoothly running analog clock, the angular velocity of its second hand in rad s\(^{-1}\) is:
Ratio between the frequencies of the third harmonics in the closed organ pipe and open organ pipe of the same length is:

The y-intercept of the graph between the terminal voltage \(V\) with load resistance \(R\) along \(y\) and \(x\) – axis, respectively, of a cell with internal resistance \(r\), as shown, is: 

The displacement-time graph of a moving body is a straight line making a 45\(^{\circ}\) angle with the time axis. The body moves with:
The ratio of the magnitudes of electrostatic force between an electron and a proton separated by a distance \( r \) to that between a proton and an alpha particle separated by the same distance \( r \) is:
Magnitude of drift velocity per unit electric field is known as:
A ball is thrown up vertically at a speed of 6.0 m/s. The maximum height reached by the ball (Take \( g = 10 { m/s}^2 \)) is:
A path length of 1m in air is equal to a path length of \(x\) m in a medium of refractive index 1.5. Then the value of \(x\) (in meters) is:
A particle is projected at an angle \( \theta \) with the x-axis in the xy-plane with a velocity \( \mathbf{v} = 6\hat{i} - 4\hat{j} \). The velocity of the body on reaching the x-axis again is:
The current flowing from p to n side in a pn junction diode irrespective of biasing is termed:

The kinetic energy of a body is increased by 21%. The percentage increase in its linear momentum is:

The dimensions of torque are:
The decreasing order of first ionization enthalpy of the following elements is:
The radius of gyration of a circular disc of radius \( R \), rotating about its diameter is:
A block of mass \( M \) is placed on the floor of a lift at the center. The acceleration required for the lift to descend so that the block exerts a force of \( \frac{Mg}{4} \) on the lift floor is:
A tennis ball of mass 50g thrown vertically up at a speed of 25 m s\(^{-1}\) reaches a maximum height of 25 m. The work done by the resistance forces on the ball is:
The wavelength of the de Broglie wave (in meter) associated with a particle of mass \(m\) moving with \(\frac{1}{10}\) of the velocity of light is (h = Planck's constant, c = velocity of light):
The constancy of the binding energy per nucleon in medium-sized nuclei is due to:
One mole of an alkene on ozonolysis gives a mixture of one mole pentan-3-one and one mole methanal. The alkene is:
The molarity of sodium hydroxide in the solution prepared by dissolving 6 g in 600 mL of water is (molar mass of NaOH = 40 g mol\(^{-1}\)):
The hybridization involved in the metal atom of \([CrF_6]^{3-}\) is:
Which of the following is used as anode in mercury cell?
In a radioactive decay, the fraction of the number of atoms left undecayed after time \( t \) is:
In a process, 600 J of heat is absorbed by a system and 375 J of work is done by the system. The change in internal energy of the process is:
The average oxidation state of sulphur in the tetrathionate ion is: