List of top Physics Questions asked in AP EAPCET

The force experienced by a charge $q$ moving with velocity $v$ in a magnetic field $B$ is maximum when the angle between $v$ and $B$ is

In a Wheatstone bridge, the bridge is balanced when the ratio of the resistances in the four arms satisfies

Three capacitors of capacitances $3\ \mu\text{F}$, $3\ \mu\text{F}$ and $3\ \mu\text{F}$ are connected in series. The equivalent capacitance is

The magnetic field at the centre of a circular coil of radius $r$ carrying a current $I$ is proportional to

A wire of resistance $R$ is stretched to double its original length. Its new resistance will be

According to Ohm's law, the relation between the electric current $I$ and the potential difference $V$ across a conductor is

The electric potential at a distance $r$ from a point charge $q$ is proportional to

The electrostatic force between two charges $q_1$ and $q_2$ separated by a distance $r$ in vacuum is $F$. If a dielectric medium of dielectric constant $K$ is introduced between them, the new force is

An open organ pipe of length $L$ resonates at its fundamental frequency. The wavelength of the sound wave produced is

A transverse wave is represented by $y = A \sin(kx - \omega t)$. The maximum particle velocity is

The apparent frequency of a siren increases as the source approaches a stationary observer. This phenomenon is known as

In an isothermal process, which of the following remains constant?

The specific heat capacity of a gas at constant pressure ($C_p$) and at constant volume ($C_v$) are related as

The efficiency of a Carnot engine working between temperatures $127^\circ\text{C}$ and $27^\circ\text{C}$ is

The mean free path of a gas molecule is inversely proportional to

The time period of a simple pendulum of length $l$ is $T$. If its length is increased to $4l$, its new time period will be

A copper rod and an iron rod of the same length have their temperature raised by the same amount. If the coefficient of linear expansion of copper is greater than that of iron, then

The ratio of the stress to the strain within the elastic limit is called

At what temperature is the root mean square (rms) speed of oxygen molecules ($O_2$) equal to that of helium molecules ($He$) at $27^\circ\text{C}$? (Given molar mass of $O_2 = 32\text{ g/mol}$, $He = 4\text{ g/mol}$)

A Carnot engine operates between a heat source at $T_1 = 600\text{ K}$ and a sink at $T_2 = 300\text{ K}$. If the engine absorbs $1000\text{ J}$ of heat from the source per cycle, the work done per cycle is:

A liquid rises to a height of $4 \text{ cm}$ in a capillary tube of radius $r$. If another capillary tube of radius $r/2$ is dipped in the same liquid, the height of liquid rise will be

The rate of flow of a liquid through a capillary tube of radius $r$ and length $l$ under a pressure difference $P$ is proportional to

Two copper wires of length $L$ and $2L$ have radii $r$ and $2r$ respectively. If they are subjected to the same tension force, the ratio of their extension ($\Delta L_1 / \Delta L_2$) is:

An engine pumps water continuously through a hose pipe. If the water leaves the pipe with velocity $v$ and $m$ is the mass per unit length of the water in the pipe, then the rate at which kinetic energy is imparted to the water is:

A thin circular ring of mass $M$ and radius $R$ is rotating about its central axis with a constant angular velocity $\omega$. Two objects, each of mass $m$, are gently attached to the opposite ends of a diameter of the ring. The new angular velocity of the ring is: