List of top Physics Questions asked in VITEEE

A stone of mass \( m \), tied to a string is being whirled in a vertical circle with a uniform speed. The tension in the string is:
A vertical electric field of magnitude \( 4.9 \times 10^5 \, {N/C} \) just prevents a water droplet of a mass \( 0.1 \, {g} \) from falling. The value of charge on the droplet will be: (Given \( g = 9.8 \, {m/s}^2 \))
The magnetic moment of an electron (e) revolving in an orbit around nucleus with an orbital angular momentum is given by:
Angular momentum of the particle rotating with a central force is constant due to
The equation of a particle executing simple harmonic motion is given by \[ x = \sin \pi \left( t + \frac{1}{3} \right) \, {m}. \] At \( t = 1 \, {s} \), the speed of particle will be (Given \( \pi = 3.14 \)):
Alternating current cannot be measured by a D.C. ammeter because
An ideal gas is expanding such that \( P T^3 = {constant} \). The coefficient of volume expansion of the gas is:
Following are expressions for four plane simple harmonic waves \[ y_1 = A \cos 2 \pi \left( n_1 t + \frac{x}{\lambda_1} \right), \quad y_2 = A \cos 2 \pi \left( n_1 t + \frac{x}{\lambda_1} + \pi \right), \quad y_3 = A \cos 2 \pi \left( n_2 t + \frac{x}{\lambda_2} \right), \quad y_4 = A \cos 2 \pi \left( n_2 t - \frac{x}{\lambda_2} \right) \] The pairs of waves which will produce destructive interference and stationary waves respectively in a medium, are
A copper rod $AB$ of length $l$ is rotated about end A with a constant angular velocity $\omega$. The electric field at a distance $x$ from the axis of rotation is
The half-life period and the mean life period of a radioactive element are denoted respectively by $T_h$ and $T_m$. Then
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
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
A conducting wire frame is placed in a magnetic field which is directed into the paper. The magnetic field is increasing at a constant rate. The directions of induced current in wires $AB$ and $CD$ are
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
If the kinetic energy of a free electron doubles, it�s de-Broglie wavelength changes by the factor
In Young's double slit experiment, the central point on the screen is
A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same which one of the following will not be affected ?
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
The Young?? modulus of a perfectly rigid body is
A rain drop of radius $0.3\, mm$ has a terminal velocity in air is $1\, m/s$. The viscosity of air is $8 \times 10^{-5}$ poise. The viscous force on it is
The equivalent capacitance of the combination of the capacitors is
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
A hollow sphere and a solid sphere, of equal mass and equal radii roll down without slipping on an inclined plane. If the torque experienced by the hollow sphere and solid sphere are $\tau_H$ and $\tau_S$ respectively, then
The work done by an uniform magnetic field, on a moving charge is