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CBSE 12 Physics Question Paper-2020 Set-2
This mock test includes actual CBSE Class 12 Physics board exam questions from the year 2020 set-2, helping students understand exam trends and practice real paper format
Duration
30 min
Questions
30
Marking
Negative
Questions Preview
A cell of internal resistance r connected across an external resistance R can supply maximum current when
In a current carrying conductor, the ratio of the electric field and the current density at a point is called
An electron is released from rest in a region of uniform electric and magnetic fields acting parallel to each other. The electron will
Above Curie temperature, a
Displacement current exists only when
Resistivity of a given conductor depends upon
The ratio of current density and electric field is called
In decay, a
The material which is not suitable for making a permanent magnet is
A welder wears special glasses to protect his eyes mostly from the harmful effect of
In a current carrying conductor, the ratio of the electric field and the current density at a point is called
In Young's double slit experiment, the path difference between two interfering waves at a point on the screen is 2/5λ, λ being wavelength of the light used. The _____ dark fringe will lie at this point.
The energy required to bring a system from one state to another is called
A magnetic field exerts a force on a moving charge. The direction of the force is
The intensity of a sound wave is related to its
When light passes through a polarizer, the intensity of the transmitted light is
The value of acceleration due to gravity at the surface of the earth is
The device used for converting mechanical energy into electrical energy is called
A concave lens is used to
The work done in moving a charge in a uniform electric field is equal to the
The energy required to remove an electron from an atom is called
The value of Planck's constant is
In an atom, the maximum number of electrons that can be accommodated in the second shell is
The force between two charges is directly proportional to
The law that states that the total current entering a junction is equal to the total current leaving the junction is known as
The intensity of light passing through a material depends on
In the Bohr model of the atom, electrons move in
The energy of a photon is directly proportional to its
The force on a current carrying conductor placed in a magnetic field is given by
The magnitude of the magnetic field due to a long straight current carrying conductor is directly proportional to