CBSE 12 Physics Question Paper-2020 Set-4

In the α-particle scattering experiment, the shape of the trajectory of the scattered α-particles depends upon:

When a wave undergoes reflection at an interface from a rarer to a denser medium, the ad hoc change in its phase is:

Paschen series of atomic spectrum of hydrogen gas lies in:

In β-decay, a neutron is converted into a proton, e−, and _.

In a linearly polarized light, the electric vector oscillates along a direction perpendicular to the aligned molecules of the polaroid, called _ axis.

The Bohr radius for the hydrogen atom is given by:

In the electric field produced by a point charge, the force on a test charge will:

The charge on a capacitor is doubled. What will happen to its energy?

The current through an inductor is increasing at a uniform rate. The induced emf in the inductor will be:

In a transistor, when the base current is increased, the collector current:

What is the unit of electric field strength?

Which of the following is the SI unit of capacitance?

The resistance of a conductor depends on all of the following except:

Which law gives the relationship between current, voltage, and resistance?

The electromagnetic waves are classified based on their:

Which part of the electromagnetic spectrum has the highest frequency?

The energy of a photon is directly proportional to its:

The unit of electric potential difference is:

The capacitance of a capacitor depends on all of the following except:

The magnetic field inside a solenoid is:

The power dissipated in a resistor is given by:

In a parallel plate capacitor, the potential difference between the plates is increased. What happens to the energy stored in the capacitor?

The relation between electric field (E) and electric potential (V) is:

The magnetic field due to a current-carrying conductor depends on the:

The electric field inside a conductor is:

In the photoelectric effect, the energy of the emitted electrons depends on the:

The phenomenon of interference is observed in:

The magnetic field at the center of a circular loop carrying current is:

The work done in moving a charge in an electric field is equal to the:

The resistance of a conductor depends on the: