List of top Questions asked in AP EAPCET- 2026

A wire of resistance $R$ is stretched to double its original length. Its new resistance will be [H] [width=0.5\linewidth]{107.png}

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

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

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 [H] [width=0.5\linewidth]{108.png}

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

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

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

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

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

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

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

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

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

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

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

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

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 $O_2 = 32\text{ g/mol}$, $He = 4\text{ g/mol}$)}

The time period of a simple pendulum is $T$ in air. When the bob is completely immersed in a non-viscous liquid of density $\rho / 10$ (where $\rho$ is the density of the bob), the new time period of oscillation is: [H] [width=0.5\linewidth]{86.png}

The acceleration due to gravity at a height $h$ above the Earth's surface is the same as that at a depth $d$ below the surface. If both $h$ and $d$ are much smaller than the radius of Earth $R$, then the relation between $h$ and $d$ is:

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

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:

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: