List of top Physics Questions asked in TS EAMCET

Two positive point charges are separated by a distance of 4 m in air. If the sum of the two charges is $ 36 \mu C $ and the electrostatic force between them is $ 0.18 $ N, then the bigger charge is:

The ratio between electric field energy density and magnetic field energy density of an electromagnetic wave, in its region is:

In Bohr model of hydrogen atom, if the difference between the radii of $ n^{th} $ and$ (n+1)^{th} $orbits is equal to the radius of the $ (n-1)^{th} $ orbit, then the value of $ n $ is:

A solid sphere and a disc of same mass $M$ and radius $R$ are kept such that their curved surfaces are in contact and their centers lie along the same horizontal line. The moment of inertia of the two body system about an axis passing through their point of contact and perpendicular to the plane of the disc is:

The half-lives of two radioactive materials A and B are respectively $ T $ and $ 2T $. If the ratio of the initial masses of the materials A and B is 8:1, then the time after which the ratio of the masses of the materials A and B becomes 4:1 is:

The initial and the final temperatures of a black body are $27^\circ C$ and $177^\circ C$ respectively. The increase in the amount of radiation emitted per second is:

The ratio of the degrees of freedom of monatomic and diatomic gas molecules is:

An observer is standing below a freely falling source of sound of frequency 900 Hz. The change in the frequency noticed by the observer after 3 seconds of free fall of the source is (speed of sound in air is 330 ms$^{-1}$ and acceleration due to gravity = 10 ms$^{-2}$)

A prism having angle $\theta$ and refractive index of the material of prism ‘n’ are related by \[ \theta = 2\sin^{-1} \left( \frac{1}{\sqrt{n^2 + 1}} \right) \] - If the angle of minimum deviation is $60^\circ$, then the angle of the prism is

A polaroid sheet ‘P’ is placed on another similar polaroid sheet ‘Q’ such that the angle between their axes is $45^\circ$. - The ratio of the intensities of the light emerged from polaroid ‘Q’ and the unpolarised light incident on polaroid ‘P’ is

A charged particle of mass 5 g and charge 20 μC is thrown with a velocity of 16 m/s$^-1$ in a direction opposite to the direction of a uniform electric field of $ 2 \times 10^5 $ N/C. The distance travelled by the particle before coming to rest is:

Two positive point charges of $10 \, \mu C$ and $12 \, \mu C$ are kept in air with a separation of 12 cm. - To make the distance between the charges 4 cm, the work done is

A storage battery of emf $10V$ and internal resistance $1 \Omega$ is being charged by a $100V$ dc supply using a series resistor of $17 \Omega$. - The terminal voltage of the battery during charging is

In a meter bridge, when an unknown resistance ‘R’ is connected in the left gap, the null point is obtained at 25 cm from the left end of the wire. - If the resistance in the left gap is increased by 100\%, the distance of the null point from the left end of the wire increases by

A coil of 200 turns and area of cross-section $5 \times 10^{-3} \, m^2$ carries a current of 3 A. - The magnetic moment of the coil is

When a diamagnetic substance of relative permeability $0.5$ is filled inside a solenoid, then its self-inductance

When an alternating voltage given by $E = 100 \sin(10^2 t)$, where $E$ is in volts and $t$ is in seconds, is applied across a capacitor of capacitance $20 \, \mu F$, the peak current flowing in the circuit is

If the wavelength of the incident radiation on a photosensitive metal surface is decreased from $3100 \, \text{Å}$ to $1550 \, \text{Å}$, the maximum kinetic energy of the emitted photoelectrons is tripled. - The work function of the metal surface is

In Geiger-Marsden experiment, if the initial speed of $\alpha$ particle is doubled, then the closest distance of approach of the $\alpha$ particle from the gold nucleus - (Assume $\alpha$ particle is projected straight towards the gold nucleus)

The energy equivalent of $3.2 \, \mu g$ of mass is

If the nucleus $X^{240}$, initially at rest, splits into two daughter nuclei $Y^{100}$ and $Z^{140}$, then the ratio of the kinetic energies of $Y$ and $Z$ is

The power delivered by the battery shown in the figure is - (Take the forward and reverse biased resistances of the diode are zero and infinity respectively)

A $5$ kHz frequency signal is amplitude modulated on a carrier wave of frequency $2$ MHz. - One possible frequency of the resultant signal is

The momentum of an electron is $6.625 \times 10^{-28} \, kg \cdot ms^{-1}$. What is its wavelength in nm? - (Given: $ h = 6.625 \times 10^{-34} \, J \cdot s$)

The following orbital energies ($E$) are compared. Identify the correct sets

(I) E₂(H) = E₂(H)
(II) E₃(H) = E₃(He)
(III) E₂s(H) < E₂s(He)
(IV) E₃s(He) < E₃s(H)