List of top Questions asked in TS EAMCET

At $T(K)$ the kinetic energy of one mole of an ideal gas is 3735 J. If its pressure is 1 atm, the volume of gas is ($R = 8.3~J~mol^{-1}K^{-1}$)

Observe the following reaction and identify the correct relationships from the following \[ xP_4(s)+yOH^{-}(aq)+zH_2O(l)\rightarrow aPH_3(g)+bH_2PO_2^{-}(aq) \] I. $x+y+z=6$ II. $x=a$ III. $x+y+z=3+a+b$ IV. $a-z+b=1$

Consider the following ions

. The largest cation and largest anion are respectively}

The atomic numbers of four elements A, D, E, G are 4, 7, 8, 12 respectively. The decreasing order of electronegativity of these elements is

The work function $(W_0)$ of metals A, B and C is 2.25, 2.42 and 3.7 eV respectively. These metals were irradiated with light of wavelength 400 nm. Identify the metals from which photoelectrons are emitted $(h = 6.6 \times 10^{-34} Js; c = 3 \times 10^8 ms^{-1}; 1 eV = 1.6 \times 10^{-19} J)$

The frequency band of standard amplitude modulated broadcast is

In a cathode ray experiment hydrogen gas was subjected to very low pressure and high voltage. The $\frac{e}{m}$ of cathode rays liberated was $-x~C~kg^{-1}$. In the second experiment helium gas was used under the same experimental conditions. What is the $\frac{e}{m}$ $(in~C~kg^{-1})$ of cathode rays liberated in the second experiment?}

The reason for the constancy of binding energy per nucleon of nuclei whose mass number lies between 30 and 170 is

A pure silicon with $6 \times 10^{28}$ atoms is doped with arsenic of 1 ppm concentration. If the intrinsic carrier concentration is $1.2 \times 10^{16} m^{-3}$, then the number of holes in the doped silicon is}

The ratio of energies of forbidden bands of silicon and germanium is nearly

The ratio of the rate of disintegration and the initial number of nuclei of a radioactive substance is $0.25~hour^{-1}$. The time taken (in hours) for the number of nuclei of this substance to become $\frac{1}{\sqrt{e}}$ times the initial number of nuclei is}

The slope of the graph drawn by taking the frequency (in $10^{15}Hz$) of light incident on a photosensitive material on x-axis and the stopping potential (in volt) on y-axis is nearly

The radius of second orbit of hydrogen atom is 2.12 Å and the velocity of the electron revolving in this orbit is $1.1\times10^6 ms^{-1}$. According to classical electromagnetic theory, the initial frequency of light emitted by this electron is nearly}

The permeability of the material of the core used in a solenoid of length 1.4 m, radius 7 cm having $10^3$ turns and a self-inductance of 2.2 H is

A bar magnet of magnetic moment $1.5A\,m^{2}$ is initially placed in the direction of a uniform magnetic field of $18\times10^{-2}$ T. The work to be done to rotate the magnet so that its magnetic moment becomes perpendicular to the direction of the magnetic field is}

At a point P on the axis of a current carrying circular coil of radius R, the magnetic field is B. If the distance of point P from the centre of the coil is $R\sqrt{15}$, then the magnetic field at a point Q on the axis of the coil which is at a distance of $R\sqrt{3}$ from the centre of the coil is}

A galvanometer of resistance 20 Ω shows full scale deflection for a current of 5 mA. To convert the galvanometer into a voltmeter of range 0 to 24 V, the resistance to be connected in series to the galvanometer is

The average force exerted on $5 cm^2$ area of a non-reflecting plate in 10 minutes when light with an energy flux of $20\,W\,cm^{-2}$ incidents normally on it is}

The quality factor of a series LCR circuit with $L=0.12 H$, $C=480$ nF and $R=25 \Omega$ connected to a 220 V variable frequency supply is

A metal wire of length 120 cm and area of cross-section $1.8\times10^{-6}m^{2}$ is carrying a current of 2 A. If the number of free electrons per unit volume in the wire is $6.25\times10^{28}m^{-3}$, then the time taken by an electron to drift from one end to the other end of the wire (in hours) is}

In Young's double slit experiment, when a screen is placed at a distance of 1.2 m from the plane of the slits, the fringe width is 2 mm. If the setup is immersed in a liquid of refractive index 1.25 and the screen is moved to a distance of 1.8 m from the slits, then the fringe width is

If three electric charges each of magnitude 20 µC are placed at any three corners of a square of side $\sqrt{2}\,m$, then the net electric field at the centre of the square (in $10^{5}NC^{-1}$) is}

When an equilateral prism is immersed in a liquid A of refractive index $\frac{4}{3}$ the angle of minimum deviation is equal to the angle of the prism. If the same prism is immersed in another liquid B, the angle of minimum deviation is 50% of the angle of the prism, then the refractive index of the liquid B is}

In the given circuit, if the potential difference between the points A and B is 90 V and the resistance of the voltmeter is 6000 $\Omega$, then the reading of the voltmeter is

Three charges q, q and Q ($q=+20~\mu C$ and $Q=+10~\mu C$) are placed on the circumference of a circle of radius $10\sqrt3$ cm. If the distance between any two charges is same, then the total electrostatic potential energy of the system of the three charges is