List of top Physics Questions

A spring of force constant $k $ is cut into two pieces such that one piece is double the length of the other. Then the longer piece will have a force constant of
A particle at the end of a spring executes simple harmonic motion with a period $T_1$, while the corresponding period for another spring is $T_2$ . If the period of oscillation with the two springs in parallel is $T$, then
Which one of the following represents simple harmonic motion?
If maximum speed of a particle in SHM is given by $V_m$, what is its average speed?
In simple harmonic motion, loss of kinetic energy is proportional to
Which of the following equation does not represent a SHM?
Two pendulum have time period T and $ \frac{5T}{4} $ they start SHM at the same time form the mean position. What will be the phase difference between them after the bigger pendulum completed one oscillation
An open pipe of length 33 cm resonates with frequency of 1000 Hz. If the speed of sound is $ 333\,m{{s}^{-1}}, $ then this frequency is
In a simple pendulum the breaking strength of the string is double the weight of the bob. The bob is released from rest when the string is horizontal. The string breaks when it makes an angle $ \theta $ With the vertical
Two pendulums of lengths 100 cm and 121 cm start vibrating. At some instant the two are at the mean position in the same phase. After how many vibrations of the longer pendulum will the two be in the same phase at the mean position again?
A child swinging on a swing in sitting position, stands up, then the time period of swing will
The fundamental frequency of a closed pipe is 220 Hz. If $\frac{1}{4}$ of the pipe is filled with water, the frequency of the first overtone of the pipe now is
The unit of physical quantity obtained integral of electric field is
Charge $q_2$ of mass m revolves around a stationary charge $q_1$ in a circular orbit of radius r. The orbital periodic time of $ q_2 $ would be
There exists an electric field of 1 N/C along $Y$ direction. The flux passing through the square of 1 m placed in $XY$ plane inside the electric field is
A spherical conducting shell of inner radius $r_{1}$ and outer radius $r_{2}$ has a charge $Q$. A charge $-q$ is placed at the centre of the shell. The surface charge density on the inner and outer surfaces of the shell will be
Among the following, the correct graphical representation of electric intensity as a function of distance from the centre of a uniformly charged conducting sphere is shown in
An electron c penetrates through a thin plate A and enters the electric field region between parallel plates A and B. It gets slowed down Three other particles-proton (p), alpha particles $(\alpha)$ and beta particles $(\beta^-)$ - similarly penetrate through either plate A or plate B as shown. The correct statement as regards the speed of the particles is
Gauss's law can't be used to calculate electric field near an electric dipole. Electric dipole don't have symmetrical charge distribution.
The total electric flux emanating from a closed surface enclosing an $\alpha$-particle (e = electronic charge) is
A small drop of mercury is spherical but bigger drops are oval in shape. surface tension of liquid decreases with increase in temperature.
The unit of surface tension is
In the given network, the value of $C$, so that an equivalent capacitance between $A$ and $B$ is $3\mu F$, is
Charges $5 \mu C$ and $10 \mu C$ are placed 1 m apart. Work done to bring these charges at a distance 0.5 m from each other is $(k = 9\times 10^9 SI)$
A hollow metal sphere of radius 10 cm is charged such that the potential on its surface becomes 80 V. The potential at the centre of the sphere is