List of top Physics Questions asked in VITEEE, NEET (UG)

Consider a pair of insulating blocks with thermal resistances \( R_1 \) and \( R_2 \) as shown in the figure. The temperature \( \theta \) at the boundary between the two blocks is:
A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface, collides with a nearly weightless spring of force constant \( k = 50 \, \text{N/m} \). The maximum compression of the spring would be:
An electric dipole is kept in a uniform electric field. It experiences:
The magnetic field at a distance \( r \) from a long wire carrying current is 0.4 tesla. The magnetic field at a distance \( 2r \) is:
The equivalent capacitance of the combination of the capacitors is:
The half-life period and the mean life period of a radioactive element are denoted respectively by \( T_h \) and \( T_m \). Then:
In a common base mode of a transistor, the collector current is 5.488 mA for an emitter current of 5.60 mA. The value of the base current amplification factor \( \beta \) will be:
A person swims in a river aiming to reach exactly on the opposite point on the bank of a river. His speed of swimming is 0.5 m/s at an angle of 120° with the direction of flow of water. The speed of water is:
The velocity-time graph of a body moving in a straight line is shown in the figure. Find the displacement and distance travelled by the body in 10 seconds.
The ratio of the energies of the hydrogen atom in its first to second excited states is:
If the kinetic energy of a free electron doubles, its de-Broglie wavelength changes by the factor:
Radioactive element decays to form a stable nuclide, then the rate of decay of reactant is shown by:
A point charge \( q \) is rotated along a circle in the electric field generated by another point charge \( Q \). The work done by the electric field on the rotating charge in one complete revolution is:
Which of the following gates will have an output of 1?
The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then:
Two thin lenses are in contact and the focal length of the combination is 80 cm. If the focal length of one lens is 20 cm, then the power of the other lens will be:
The current in the $1\Omega$ resistor shown in the circuit is
In a common base mode of a transistor, the collector current is $5.488\, mA$ for an emitter current of $5.60\, mA$. The value of the base current amplification factor $(\beta)$ will be
If the kinetic energy of a free electron doubles, it�s de-Broglie wavelength changes by the factor
The half-life period and the mean life period of a radioactive element are denoted respectively by $T_h$ and $T_m$. Then
The equivalent capacitance of the combination of the capacitors is
In amplitude modulation, the amplitude of carrier wave is $A_c$ and that of the modulating signal is $A_m$. In practice, the ratio of to $A_m$ to $A_c$ is kept less than or equal to one, to avoid
The work done by an uniform magnetic field, on a moving charge is
Consider a pair of insulating blocks with thermal resistances $R_1$ and $R_2$ as shown in the figure. The temperature $\theta$ at the boundary between the two blocks is
In Young's double slit experiment, the central point on the screen is