List of top Questions asked in TS EAMCET- 2025

In hydrogen atom, an electron is transferred from an orbit of radius $1.3225$ nm to another orbit of radius $0.2116$ nm. What is the energy (in J) of emitted radiation? (Rydberg constant $R_H \approx 1.097 \times 10^7 \text{ m}^{-1}$)
Identify the correct orders regarding atomic radii
i. $\text{Cl}>\text{F}>\text{Li}$
ii. $\text{P}>\text{C}>\text{N}$
iii. $\text{Tm}>\text{Sm}>\text{Eu}$
iv. $\text{Sr}>\text{Ca}>\text{Mg}$
Match the following
The isobars of one mole of an ideal gas were obtained at three different pressures $(p_1, p_2$ and $p_3)$. The slopes of these isobars are $m_1, m_2$ and $m_3$ respectively. If $p_1<p_2<p_3$, then the correct relation of the slopes is
If the frequencies of the carrier wave and message signal are $1$ MHz and $28$ kHz respectively, then the frequencies of the side bands are
Observe the following statements
Statement-I: Rutherford model of an atom cannot explain the stability of an atom
Statement-II: The wavelength of X-rays is higher than the wavelength of microwaves
The correct answer is
The current amplification factor of a transistor in common emitter configuration is 80. If the emitter current is 2.43 mA, then the base current is
The negative feedback in an amplifier
The small energy losses in transformers due to eddy currents can be reduced by
In a photoelectric experiment, the slope of the graph drawn between stopping potential along y-axis and frequency of incident radiation along x-axis is (Planck's constant = $6.6\times 10^{-34}$ Js)
When an element $_{90}^{232}\text{Th}$ decays into $_{82}^{208}\text{Pb}$, the number of $\alpha$ and $\beta^{-}$ particles emitted respectively are
The maximum wavelength of incident radiation required to ionize a hydrogen atom in its ground state is nearly
During the disintegration of a radioactive nucleus of mass number 208 at rest, two alpha particles each with kinetic energy E are emitted. The total kinetic energy of the emitted alpha particles and the daughter nucleus after the disintegration is
The area of cross-section of a potentiometer wire is $6 \times 10^{-7}$ m$^2$. The potential difference per unit length of the potentiometer wire when it is connected to a cell of negligible internal resistance and a resistor in series is $0.15$ Vm$^{-1}$. If the current through potentiometer wire is $0.3$A, then the resistivity of the material of the potentiometer wire is
As shown in the figure, a uniform straight wire of length $30\sqrt{3}$ cm is bent in the form of an equilateral triangle ABC. A uniform magnetic field 2T is applied parallel to the side BC. If the current through the wire is 2A, the magnitude of the force on the side AC is
The current amplification factor of a transistor in common emitter configuration is 80. If the emitter current is 2.43 mA, then the base current is
A coil of resistance $16 \Omega$ is placed with its plane perpendicular to a uniform magnetic field whose flux ($\phi$ in $10^{-3}$ weber) changes with time (t in second) as $\phi = 5t^2+4t+2$. The induced current at time $t=6$ seconds is
A proton moving with a velocity of $8\times 10^5$ ms$^{-1}$ enters a uniform magnetic field normal to the direction of the magnetic field. If the radius of the circular path of the proton in the magnetic field is $8.3$ cm, then the magnitude of the magnetic field is (Charge of proton = $1.6\times 10^{-19}$ C and mass of the proton = $1.66\times 10^{-27}$ kg)
At a certain place in the magnetic meridian, the earth's magnetic field is twice its vertical component. The ratio of horizontal component of earth's magnetic field and the total magnetic field of the earth at that place is
The distance for which ray optics becomes a good approximation for an aperture of 0.3 cm and a light of wavelength 6000 $\text{\AA}$ is
729 small identical spheres each charged to an electric potential 3V combine to form a bigger sphere. The electric potential of the bigger sphere is
A straight metal rod of length 6 cm is placed along the principal axis of a concave mirror of focal length 9 cm such that the end of the rod closer to the mirror is at a distance of 15 cm from the pole of the mirror. The length of the image of the rod is
A ray of light incidents at an angle of $9.3^\circ$ on one face of a small angle prism of refracting angle $6^\circ$. If the ray of light emerges normally from the second face, the refractive index of the material of the prism is
The electrostatic force between two charges kept in air is F. If 30% of the space between the charges is filled with a medium, then the electrostatic force between the charges becomes $\frac{F}{2.56}$. The dielectric constant of the medium is
The air columns in two tubes closed at one end vibrating in their fundamental modes produce 2 beats per second. The number of beats produced per second when the same tubes are vibrated in their fundamental mode with their both ends open are