List of top Physics Questions asked in AP EAPCET

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

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

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 mean free path of a gas molecule is inversely proportional to

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

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:

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:

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

A projectile is launched from the ground with an initial velocity $v$ at an angle $\theta$ to the horizontal. If its horizontal range is equal to its maximum height, then the value of $\tan \theta$ 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:

If the dimensional formula of a physical quantity is $[M^1 L^2 T^{-2}]$, then the quantity is:

A lift of mass $M$ is accelerating upwards with an acceleration $a$. If the tension in the supporting cable is $T_1$ during upward acceleration and $T_2$ when it accelerates downwards with the same acceleration $a$, then the ratio $T_1 / T_2$ 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: [H] [width=0.5\linewidth]{85.png}

A mercury drop of radius \( 1 \) cm is divided into \( 10^6 \) droplets of equal size. If the surface tension of mercury is \( 35 \times 10^{-3} \) N/m, then the change in surface energy in the process is:

If $T$ is the time period of a simple pendulum, then at a time $\frac{T}{6}$ the pendulum passes its mean position

A sample of a ferromagnetic iron in the shape of a cube of side 1.0 μm contains $8.7 \times 10^{29}$ atoms per cubic meter and the magnetic dipole moment of each iron atom is $9.3 \times 10^{-29}$ Am². Then the maximum possible magnetic dipole moment (in Am²) of the sample is nearly

If 27 charged water droplets, each of radius $10^{-6~\text{m}$ and charge $10^{-12}~\text{C}$ coalesce to form a single spherical drop, then the potential of the big drop is}

If the distance travelled by a freely falling body in the last but one second of its motion is 5 m, then the last second is: