List of top Physics Questions asked in JKCET

A solenoid of length $0.6 \,m$ has a radius of $1 \,cm$ and is made up of $600$ turns. It carries a current of $6 \,A$. What is the magnitude of the magnetic field inside the solenoid?
The Lenz's law is the consequence of the conservation of
The waves used for line-of-sight $(LOS)$ communication is
The motion of a particle in straight line is an example of
Unpolarized light falls on two polarizing sheets placed one on top of other. If the intensity of transmitted light is one fourth of the incident light, the angle between them is
When an object is placed $40\,cm $ from a diverging lens, its virtual image is formed $20\,cm$ from the lens. The focal length and power of lens are
The transverse nature of electromagnetic waves is proved by which of the following?
The dimensional formula of electric potential is
The power $(P)$ of an engine lifting a mass of $ 100\,kg$ up to a height of $ 10\,m $ in $ 1\,\min $ is
Polonium has a half-life of $140$ days. If we take $20\,g$ of polonium initially then the amount of it that remains after $280$ days is
The alternating current in a circuit is given by $ I=50\,\sin \,314\,t $ . The peak value and frequency of the current are
The displacement, velocity and acceleration in a simple harmonic motion are related as the
The induced emf in a coil of $10$ Henry inductance in which current varies from $9\,A $ to $4\,A$ in $0.2$,second is
The conservation of angular momentum demands that
Two identical capacitors are first connected in series and then in parallel. The ratio of equivalent capacitance is
The Brewster's law is given by the expression
The position vector of a point $R$ which divides the line joining $ P(6,\,3,-2) $ and $ Q(3,1,-4) $ Q(3,1, - 4) in the ratio $ 2:1 $ externally is
A long straight wire is carrying a current of $ 12\,A $. The magnetic field at a distance of $ 8\,cm$ is $ (\mu _{0}=4\pi \times 10^{-7}\,N/A^{2}) $
The centripetal force is given by the expression
Which of the following physical quantity unit is not a fundamental unit?
The net electric force on a charge of $ +3\,\mu C $ at the mid-point on the line joining two charges of magnitude $ +2\,\mu C $ and $ -2\,\mu C $ separated by the distance of $6\,mm, $ is
An electric charge does not have which of hte following properties?
Which component of electromagnetic spectrum have maximum wavelength?
The value of acceleration due to gravity at the surface of earth
According to Bohr model of hydrogen atom, only those orbits are permissible which satisfy the condition