List of top Physics Questions

Electric flux emanating through a surface element $ \overrightarrow{ds}=5\hat{i} $ placed in an electric field $ \vec{E}=4\hat{i}+4\hat{j}+4\hat{k} $ is
Energy stored per unit volume of a parallel plate capacitor having plate area $A$ and plate separation d when charged to a potential of $V$ volts is (air space in between the plates)
A particle is executing linear simple harmonic motion. The fraction of the total energy that is potential, when its displacement is $ \frac{1}{4} $ of the amplitude is
The temperature of a radiating body increases by $30\%$. Then the increase in the amount of radiation is
Morphine which is used as an analgesic is obtained from
The working principle of rocket propulsion is conservation of
The nuclear force
The relation connecting magnetic susceptibility $ \chi_{m} $ and relative permeability $ \mu _{r} $ is
The average power dissipated in a pure capacitance $AC$ circuit is
In a transistor, the base is
In AC circuit Ohm's law is applicable for
The shortest wavelength of $X$-rays coming from an $X$-ray tube depends on the
In Young's double slit experiment, the fringe width with light of wavelength $6000 \,?$ is $3 \,mm$. The fringe width, when the wavelength of light is changed to $4000 \,?$ is
The correct vector relation between linear velocity $ \vec{v} $ and angular velocity $ \vec{\omega } $ in rigid body dynamics is ( where $ \vec{r} $ is the position vector)
The maximum range of a projectile is $ 100\,m $ . The maximum height reached by it is
The given figure gives electric lines of force due to two charges $ q_{1}$ and $q_{2}$ . What are the signs of the two charges?
Atomic mass of $ {{^{13}}_{6}}C $ is 13.00335 amu and its ea-s number is 13.0. If 1 amu = 931 MeV, binding energy of the neutrons present in the nucleus is
A glass slab of thickness 8 cm contains the same number of waves as 10 cm long path of water when both are traversed by the same monochromatic light. If the refractive index of water is $ \frac{4}{3} $ , the refractive index of glass is
A bar magnet having a magnetic movement of $2 \times 10^{4} JT ^{-1}$ is free to rotate in a horizontal plane. A horizontal magnetic field $B =6 \times 10^{-4}$ T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction $60^{\circ}$ from the field is :
When the cold and hot junctions of a thermocouple are interchanged, the thermo emf
If only 2% of the main current is to be passed through a galvanometer of resistance G, the resistance of shunt should be
$n $ type and $p$ type semiconductors can be obtained by doping pure silicon respectively with
Potential energy of two charges $10 \, nC$ each separated by a distance of 0.09 m in air is
Quality factor of a series $LCR$ circuit decreases from 3 to 2. Resonant frequency is $600 \, Hz$. Change in band width is
Specific resistance of a conductor material increases with