List of top Questions asked in Bihar Board Class XII

Which President of India used pocket veto?
From where did Naxalism start?
What is/are the hindrance(s) in nation building?
In which schedule is there a provision related to anti-defection law?
Which of the following subjects is included in the concurrent list?
Under which article has the provision of All India services been made?
Fundamental Rights are
Which of the following Prime Ministers had shortest tenure?
Panchayati Raj is included in which of the following lists?
Which of the following is not a characteristic of the Indian political system?
Who is the main source of political power in India?
What is the Rydberg constant? Write down its unit.
What is an electric dipole? Find an expression for electric potential at any point due to an electric dipole.
What is interference of light? Find an expression for fringe width in Young's double slit experiment.
Mention the defects of human vision and describe the methods to remove them.
Write the properties of diamagnetic, paramagnetic, and ferromagnetic materials.
Define self-inductance and write its S.I. unit. Find the self-inductance for a solenoid of \( N \) turns, length \( l \), and radius \( r \).
Describe with diagram the working method of p-n-p and n-p-n transistors.
What is the critical angle? Write down its necessary conditions.
10$^{19}$ electrons are placed on an uncharged body. Calculate the charge produced on the body.
Mention the difference between p-type and n-type semiconductors.
Write down two uses of a shunt.
What is wattless current?
What is a light-emitting diode (LED)? Write down one application of it.
Convert the binary number \(1101\) into the decimal system.