List of top Physics Questions

A potentiometer wire of length 1 m and resistance $10\,\Omega$ is connected in series with a cell
In the circuit shown $P eqR,$ the reading of galvanometer is same with switch S open or closed. Then
For a particle executing simple harmonic motion, which of the following statements is not correct?
Time period of a simple pendulum is 2 sec. If its length is increased by 4 times, then its period becomes
A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates
Electrons move away from a region of lower potential to a region of higher potential. Since an electron has a negative charge.
When a magnetic substance is heated, then it
If $E_p$ and $E_k$ are the potential energy and kinetic energy of the electron in a stationary orbit in the hydrogen atom, the value of $E_p/E_k$ is
A wire of resistance 12 ohm is in the form of a circle. The resistance between the ends of a diameter is :
A choke coil should have
A choke coil has
Order of magnitude of density of uranium nucleus is $ (m_p = 1.67 \times 10^{-27} Kg ) $
Binding energy per nucleon versus mass number curve for nuclei is shown in figure. W, X, Y and Z are four nuclei indicated on the curve. The process that would release energy is
A particle of mass M at rest decays into two particles of masses $ m_1 \, and \, \, m_2 $ having non-zero velocities. The ratio of the de-Broglie wavelengths of the particles $ \frac{\lambda_1}{\lambda_2} $ is
Which of the following quantity is increased in a step-down transformer?
Which of the following affects the elasticity of a substance?
Two identical conductors of copper and aluminium are placed in an identical electric field. The magnitude of induced charge in the aluminium will be
The number of electrons for one coulomb of charge is
Sky appears to be blue in clear atmosphere due to light??
Relation between critical angle of water and the glass is
If a cyclist moving with a speed of $4.9\, m / s$ on a level road can take a sharp circular turn of radius $4 \,m$, then coefficient of friction between the cycle tyres and road is
How many significant figures are there in $30.00$ ?
Dimensions $\left[ ML ^{-1} T ^{-1}\right]$ are related to
Only a change in magnetic flux will maintain an induced current in the coil. The presence of large magnetic flux through a coil maintains a current in the coil if the circuit is continuous.
On a rainy day, it is difficult to drive a car or bus at high speed. The value of coefficient of friction is lowered due to wetting of the surface.