List of top Physics Questions asked in AP EAPCET

Magnetic field at $0.1\text{ m}$ from a long straight wire carrying $10\text{ A}$ current is:

A wire of length $1\text{ m}$ is broken into two unequal parts $P$ and $Q$. Part $P$ is extended to double its length so that its resistance become equal to resistance of $Q$. The length of $Q$ part is:

A parallel plate capacitor is charged and then disconnected from the battery. If a dielectric slab is now inserted between the plates of the capacitor, the energy stored in the capacitor:

Work done in assembling two identical charges each having a charge 'q', separated by a distance $r$ is:

Ten resistors, each having resistance of $6\text{ }\Omega$, are connected in a circuit. Then the ratio of maximum current to the minimum current that can flow through the circuit is:

The surface charge density of an isolated sphere A of radius $2\text{ cm}$ having a charge of $+10\text{ }\mu\text{C}$ is twice the surface charge density of another sphere B of radius $3\text{ cm}$. If the two spheres are joined and then separated, the charges on the sphere A and B after separation are respectively:

If the absolute temperature of the source of a Carnot's engine is changed from $T_1$ to $T_2$, its efficiency increases from $0.25$ to $0.4$. If the temperature of the sink is constant, then the ratio of $T_1$ and $T_2$ is:

When a light ray is incident on a small angle prism of material of refractive index 1.5, the angle of minimum deviation is $7^\circ$. If the prism is immersed in a liquid of refractive index 1.2, then the angle of minimum deviation is:

When light of wavelength $\lambda$ incidents on a single slit of width 'a', then the angular width between the third order diffraction maxima on either side of the central maximum is:

An object placed in front of a concave mirror at a distance of $x\text{ cm}$ from the pole gives a 3 times magnified real image. If it is moved to a distance of $(x + 5)\text{ cm}$, the magnification of the image becomes 2. The focal length of the mirror is:

The ratio of the degrees of freedom of a monoatomic gas and a nonlinear polyatomic gas having 2 vibrational modes is:

A source of sound and an observer are moving each with a speed of $10\%$ of the speed of sound in air. If the frequency of sound heard by the observer when they approach each other is $400\text{ Hz}$ more than the frequency of sound heard by the observer when they move away from each other, then the frequency of the source of sound is:

Two liquids $A$ and $B$ are at temperatures $40^\circ\text{C}$ and $20^\circ\text{C}$ respectively. When equal masses of these liquids are mixed, the temperature of the mixture is found to be $35^\circ\text{C}$. The ratio of specific heats of $A$ and $B$ is:

A Celsius and a Fahrenheit thermometers are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers $131^\circ$. The fall in temperature as registered by the Celsius thermometer is:

The figure shows stress versus strain graphs of two materials A and B. If $Y_A$, $Y_B$ are the Young's moduli of materials respectively, then:

The dynamic lift due to the spinning of a ball in a fluid can be explained by:

The workdone by a gas of one mole at constant temperature of $27^\circ\text{C}$ when its volume doubled is (Take $\log_{10} 2 = 0.3010$ and Universal gas constant $R = 8.314\text{ J mol}^{-1}\text{ K}^{-1}$):

A uniform solid cylinder of mass $m$ and radius $R$ is pulled along a horizontal smooth road by a horizontal force $F$ applied at its center of mass. If the cylinder rolls without slipping, the angular acceleration $\alpha$ of the cylinder is:

A satellite of mass $1000\text{ kg}$ is revolving around the earth at height equal to $\frac{R}{4}$. Then the energy to be given to the satellite to revolve around the earth at height $\frac{R}{2}$ is (Acceleration due to gravity $10\text{ m s}^{-2}$, Radius of the earth $R = 6400\text{ km}$):

A damped oscillation is subjected to a damping force of $F_d = -b V$, where 'V' is the velocity of the oscillator and 'b' is the damping constant. The angular velocity of the damped oscillator is ($k$ - force constant and $m$ - mass of the oscillator):

Two identical springs of each having force constant $\frac{k}{3}$ are connected as shown in the figure. If it executes simple harmonic motion, its time period is:

A loaded bus and an unloaded bus are both moving with the same kinetic energy. The mass of the former is twice that of the later. Brakes are applied to both so as to exert equal retarding forces. If $S_1$ and $S_2$ are the distances covered by the two buses before coming to rest respectively, then:

The ratio of moment of inertia with respect to their diameters of a circular disc and a solid sphere having same radii and same masses is:

A bomber plane moves horizontally with a speed of $500\text{ ms}^{-1}$ and a bomb released from it strikes the ground in $10\text{ sec}$. Angle with which it strikes the ground will be ($g = 10\text{ ms}^{-2}$):

A force of $250\text{ N}$ is required to lift a mass of $75\text{ kg}$ through a pulley system. In order to lift this mass through $3\text{ m}$, the rope has to be pulled through $12\text{ m}$. The efficiency of the system is: