List of top Physics Questions

In case of a forced oscillation, the resonance peak becomes very sharp when the
In SHM, the acceleration of the particle is zero, when its
Longitudinal waves cannot travel through
Resonance is an example of
Statement-I : Superposition principle is applicable only for small disturbances Statement-2 : Superposition principle is applicable only for non-linear waves
The total energy of a simple harmonic oscillator is proportional to
The waves for the propagation of which a material medium is essential will be
Threshold of audibility for normal human ear is
What is the effect on the time period of a simple pendulum if the mass of the bob is doubled?
Which of the following energy-time graphs represents damped harmonic oscillator?
Which of the following expressions does not represent simple harmonic motion?
Which one of the following is not a periodic motion?
Which of the following $x-t$ graphs does not represent periodic motion?
Which of the following motions is not simple harmonic?
Which of the following gives pure sine wave of single frequency ?
A child swinging on a swing in a sitting position, stands up, then the time period of the swing will:
A heavy small-sized sphere is suspended by a string of length L The sphere rotates uniformly in a horizontal circle with the string making an angle $ \theta $ with the vertical. Then, the time-period of this conical pendulum is
A simple pendulum is oscillating in air with negatively charged bob, now a positively charged conducting plate is placed below the pendulum. The time period of the simple pendulum will
A ring of radius R carries a charge Q, uniformly distributed along its circumference. What is the ratio of the electric field strength at a distance R to that at a distance $\frac{R}{\sqrt{2}}$ along the axis?
A rod of length $2.4\, m$ and radius $4.6\, mm$ carries a negative charge of $4.2 \times 10^{-7}\, C$ spread uniformly over it surface. The electric field near the mid-point of the rod, at a point on its surface is
A thin, metallic spherical shell contains a charge Q on it. A point charge q is placed at the centre of the shell and another charge $q_1$ is placed outside it as shown in figure. All the three charges are positive . The force on the charge at the centre is
A uniformly charged conducting sphere of $4.4\,m$ diameter has a surface charge density of $60\, \mu C\, m^{-2}$. The charge on the sphere is
An electron and a proton are situated in a uniform electric field. The ratio of their acceleration will be
A deuteron and an a-particle are placed in an electric field. If $F_1$ and $F_2$ be the forces acting on them and $a_1$ and $a_2$ be their accelerations respectively then, $a_1 = a_2$. Forces will be same in electric field.
Four point charges $q_1, q_2, q_3$ and $q_4$ are as shown in figure. The flux over the shown Gaussian surface depends only on charges $q_1$ and $q_2$. Electric field at all points on Gaussian surface depends only on charges $q_1$ and $q_2$.