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AP EAPCET 2025
List of top Questions asked in AP EAPCET- 2025
If the function
\(y = \sin(x)(1 - \cos x)\)
is defined in the interval
\([-\pi, \pi]\),
then y is strictly increasing in the interval
AP EAPCET - 2025
AP EAPCET
Mathematics
Geometry
The number of divisors of \(7!\) is:
AP EAPCET - 2025
AP EAPCET
Mathematics
Number System
The conjugate base of phosphorus acid is $ x $. The conjugate base of oleum is $ y $. What are $ x $ and $ y $, respectively?
AP EAPCET - 2025
AP EAPCET
Chemistry
Acids and Bases
The amphoteric oxide of Vanadium (V) reacts with alkali and forms an oxoion \( X \) and with acid forms an oxoion \( Y \). The oxidation states of \( V \) in \( X \) and \( Y \) are respectively:
AP EAPCET - 2025
AP EAPCET
Chemistry
Electrochemistry
The time required for 100% completion of a zero order reaction is
[$R$]$_0$ = Initial concentration of reactant, R
AP EAPCET - 2025
AP EAPCET
Chemistry
Chemical Kinetics
When the temperature increases, the viscosity of
AP EAPCET - 2025
AP EAPCET
Physics
Fluid Mechanics
If \( \overline{a} \) is a unit vector, then \( |\overline{a} \times \overline{i}|^2 + |\overline{a} \times \overline{j}|^2 + |\overline{a} \times \overline{k}|^2 = \)
AP EAPCET - 2025
AP EAPCET
Mathematics
Vectors
If 3 sisters and 8 brothers are together playing a game, then the number of ways in which all the sisters and brothers are to be seated around a circle such that all the three sisters are not seated together is
AP EAPCET - 2025
AP EAPCET
Mathematics
Number System
A radar system can detect an enemy plane in one out of ten consecutive scans. The probability that it can detect an enemy plane at least twice in four consecutive scans is:
AP EAPCET - 2025
AP EAPCET
Mathematics
Binomial theorem
If the displacement \( y \) (in cm) of a particle executing simple harmonic motion is given by the equation: \[ y = 5 \sin(3 \pi t) + 5 \sqrt{3} \cos(3 \pi t) \] then the amplitude of the particle is:
AP EAPCET - 2025
AP EAPCET
Physics
Simple Harmonic Motion
If the threshold wavelength of light for photoelectric emission to take place from a metal surface is \( 6250 \, \text{\AA} \), then the work function of the metal is (Planck's constant \( = 6.6 \times 10^{-34} \, \text{Js} \))
AP EAPCET - 2025
AP EAPCET
Physics
Photoelectric Effect
A force of 10 N acts on a body of mass 2 kg in the direction of motion of the body. If the velocity of the body at a time \( t = 0 \) is \( 13\,{ms}^{-1} \), then the velocity of the body at time \( t = 3\,{s} \) is
AP EAPCET - 2025
AP EAPCET
Physics
Kinematics
The IUPAC name of the product Z in the reaction sequence is:
AP EAPCET - 2025
AP EAPCET
Chemistry
Organic Chemistry
In acidic medium $\text{MnO}_4^-$ oxidises $\text{NO}_2^-$ to $\text{NO}_3^-$. How many moles of $\text{NO}_2^-$ are oxidised by 10 moles of $\text{MnO}_4^-$?
AP EAPCET - 2025
AP EAPCET
Chemistry
Redox reactions
If \(1, \omega, \omega^2\) are the cube roots of unity, then
\( \left(1\left(2+\frac{1}{\omega}\right)\left(2+\frac{1}{\omega^2}\right) + 2\left(3+\frac{1}{\omega}\right)\left(3+\frac{1}{\omega^2}\right) + 3\left(4+\frac{1}{\omega}\right)\left(4+\frac{1}{\omega^2}\right) + \dots + 10 \text{ terms}\right) = \)
AP EAPCET - 2025
AP EAPCET
Mathematics
Complex numbers
If
\[ A = \begin{bmatrix} x & 2 & 1 \\ -2 & y & 0 \\ 2 & 0 & -1 \end{bmatrix}, \] where \( x \) and \( y \) are non-zero real numbers, trace of \( A = 0 \), and determinant of \( A = -6 \), then the minor of the element 1 of \( A \) is:}
AP EAPCET - 2025
AP EAPCET
Mathematics
Complex numbers
The points in the Argand plane represented by the complex numbers \(4\hat{i}+3\hat{j}\), \(6\hat{i}-2\hat{j}-3\hat{k}\) and \(\hat{i}-\hat{j}-3\hat{k}\) form
AP EAPCET - 2025
AP EAPCET
Mathematics
Complex numbers
If in
\( \triangle ABC \), \( B = 45^\circ \), \( a = 2(\sqrt{3} + 1) \)
and area of
\( \triangle ABC \)
is
\( 6 + 2\sqrt{3} \)
sq. units, then the side
\( b = \ ? \)
AP EAPCET - 2025
AP EAPCET
Mathematics
Triangles
A string of letters is to be formed by using 4 letters from all the letters of the word “MATHEMATICS”. The number of ways this can be done such that two letters are of same kind and the other two are of different kind is
AP EAPCET - 2025
AP EAPCET
Mathematics
Binomial theorem
A value of \( \theta \) lying between \( 0 \) and \( \dfrac{\pi}{2} \) and satisfying
\[ \begin{vmatrix} 1 + \sin^2 \theta & \cos^2 \theta & 4\sin 4\theta \\ \sin^2 \theta & 1 + \cos^2 \theta & 4\sin 4\theta \\ \sin^2 \theta & \cos^2 \theta & 1 + 4\sin 4\theta \end{vmatrix} = 0 \]
is:
AP EAPCET - 2025
AP EAPCET
Mathematics
Matrices
If the sum of heights of transmitting and receiving antennas in line of sight communication is \(h\), then the height of receiving antenna, to have the range maximum is
AP EAPCET - 2025
AP EAPCET
Physics
Amplitude Modulation
Evaluate
\[ \sum_{k=0}^{12} \sin\left( (k+1) \frac{\pi}{6} + \frac{\pi}{4} \right) \sin \left( \frac{k \pi}{6} + \frac{\pi}{4} \right) \]
AP EAPCET - 2025
AP EAPCET
Mathematics
Trigonometric Identities
A body is projected at an angle of \(60^\circ\) with the horizontal. If the initial kinetic energy of the body is \(X\), then its kinetic energy at the highest point is
AP EAPCET - 2025
AP EAPCET
Physics
Kinematics
If two progressive sound waves represented by \( y_1 = 3 \sin 250 \pi t \) and \( y_2 = 2 \sin 260 \pi t \) (where displacement is in metre and time is in second) superimpose, then the time interval between two successive maximum intensities is
AP EAPCET - 2025
AP EAPCET
Physics
Waves
If the wavelengths of maximum intensity of radiation emitted by two black bodies A and B are \( 0.5 \, \mu\text{m} \) and \( 0.1 \, \text{mm} \) respectively, then ratio of the temperatures of the bodies A and B is
AP EAPCET - 2025
AP EAPCET
Physics
Thermodynamics
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