List of top Questions asked in AP EAPCET

Identify the correct statements from the following (only one):
I) Sulphur sol is an example of multimolecular colloid.
II) Starch sol is an example of associated colloid.
III) Artificial rubber is an example of macromolecular colloid.
Consider the following reaction sequence:
Vinylbenzene \(\xrightarrow{KMnO_4 + KOH, \Delta}\) X \(\xrightarrow{NaOH + CaO, \Delta}\) Y
'Y' can also be formed from
Consider the following statements:
Statement-I: The order of electronegativity of B, Al, In, Tl is \(B>Tl>Al>In\)
Statement-II: Boric acid is a weak protic acid
Which of the following statements is incorrect with reference to alkaline earth metals?
Consider the following:
Assertion (A): CO is poisonous to living beings
Reason (R): CO binds to hemoglobin forming carboxyhaemoglobin, which is less stable than oxygen-hemoglobin complex.
At 273 K the maximum work done when pressure on 10 g of hydrogen is reduced from 10 atm to 1 atm under isothermal, reversible conditions is
A Zener diode of breakdown voltage 20 V is connected as shown in the given circuit. The current through Zener diode is
A Zener diode of breakdown voltage 20 V
A capacitor of capacitance 2\(\mu\)F is charged to 50 V and then disconnected from the source. Later the gap between the plates of the capacitor is filled with a dielectric material. If the energy stored in the capacitor is decreased by 25% of its initial value, then the dielectric constant of the dielectric material is
A wire of resistance 100 \(\Omega\) is stretched so that its length increases by 20%. The stretched wire is then bent in the form of a rectangle whose length and breadth are in the ratio 3 : 2. The effective resistance between the ends of any diagonal of the rectangle is
The magnetic field at a distance of 10 cm from a long straight thin wire carrying a current of 4 A is
A closely wound solenoid of 1200 turns and area of cross-section 5 cm\(^2\) carries a current. If the magnetic moment of the solenoid is 1.2 J T\(^{-1}\), then the current through the solenoid is
If a refrigerator of coefficient of performance (COP) 5 has a freezer at a temperature of -13 °C, then the room temperature is
From the figure shown for a thermodynamic system, match the curves with their respective thermodynamic processes (P - Pressure and V - Volume)
thermodynamic system,
Curve | Process I | a) Adiabatic
II | b) Isobaric
III | c) Isochoric
IV | d) Isothermal
Two sound waves of wavelengths 99 cm and 100 cm produce 10 beats in a time of \( t \) seconds. If the speed of sound in air is 330 m/s, then the value of \( t \) in seconds is
The angular frequency of a block of mass 0.1 kg oscillating with the help of a spring of force constant 2.5 N m\(^{-1}\) is:
As shown in the figure, a light uniform rod PQ of length 150 cm is suspended from the ceiling horizontally using two metal wires A and B tied to the ends of the rod. The ratios of the radii and the Young’s modulus of the materials of the two wires A and B are respectively 2 : 3 and 3 : 2. The position at which a weight should be suspended from the rod such that the elongations of the two wires become equal is
light uniform rod PQ of length 150 cm is suspended
If water flows with a velocity of 20 cm/s in a pipe of radius 2 cm, then the flow is (The coefficient of viscosity of water is \(10^{-3} \, \mathrm{kg\,m^{-1}s^{-1}}\) and density of water is \(10^{3} \, \mathrm{kg\,m^{-3}}\))
An electric kettle takes 4 A current at 220 V. If the entire electric energy is converted into heat energy, then the time (in minutes) taken to increase the temperature of 1 kg of water from 34 °C to 100 °C is
According to Zeroth Law of Thermodynamics, the physical quantity which is same for two bodies in thermal equilibrium is
If the radius of gyration of a thin circular ring about an axis passing through its centre and perpendicular to its plane is $10\sqrt{2}$ cm, then its radius about its diameter is
Identify the correct option from the following:
A person holds a ball of mass 0.25 kg in his hand and throws it, so that it leaves his hand with a speed of 12 m s$^{-1}$. In the process, if his hand moved through a distance of 0.9 m, then the net force acted on the ball is
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The general solution of the differential equation $\frac{dy}{dx} + \frac{y}{x} = \frac{y}{x} e^x$ is
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If bullets are fired in all possible directions from same point with equal velocity of 10 m s$^{-1}$ and an angle of projection 45$^\circ$, then the area covered by the bullets on the ground nearby (acceleration due to gravity 10 m s$^{-2}$) is
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If a car travels 40% of the total distance with a speed $v_1$, then the remaining distance with the car is
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If $\int \frac{dx}{\sin^3 x + \cos^3 x} = A \log \left| \sqrt{2} + t \right| + B \tan^{-1} (t) + c$, then $\left( \frac{B}{A}, t \right) =$
Identify the correct option from the following: