List of top Physics Questions asked in AP EAPCET

The half-life of a radioactive substance is 10 days. The decay constant is

A p-n junction diode acts as a closed switch when it is

In Young's double-slit experiment, the fringe width is proportional to

The self-inductance of a solenoid of length $l$, area of cross-section $A$ and number of turns $N$ is proportional to

In an AC circuit containing only an inductor, the current [H] [width=0.5\linewidth]{113.png}

The velocity of electromagnetic waves in vacuum is given by

A convex lens of focal length $20 \text{ cm}$ is placed in contact with a concave lens of focal length $40 \text{ cm}$. The power of the combination is}

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 susceptibility is negative for:

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

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}

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

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

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 mean free path of a gas molecule is inversely proportional to

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

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}

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