List of top Questions asked in Bihar Board Class XII

An electron is accelerated through a potential difference of 5 volts. The energy gained by the electron will be:
The relation between electric field \( E \) and electric potential \( V \) is:
The electrostatic energy of the system made by two electric dipoles kept at a distance \( r \) is proportional to:
The unit of linear charge density is:
The dimensional formula of the intensity of electric field is:
The number of electrons present in 8 coulomb negative charge is:
Write a short note on water pollution.
Mention the characteristics of intensive subsistence agriculture.
Describe quaternary activities.
Give a brief account of the role of rail transport in the economic development of India.
Draw a map of India and show the following:
(a) Narmada River
(b) Delhi
(c) Jamshedpur
(d) Mumbai
(e) Chennai
What is slum?
What is naturalisation of humans?
Name any four Rabi crops of India.
What do you mean by density of population?
Name four ports located on the eastern coast of India.
Write the names of two subfields of Human Geography.
Mention the location and importance of Mumbai Port.
Describe the characteristics of Green Revolution in India.
What is the difference between rural and urban settlements?
Mention any two factors influencing the location of industries.
Write the names of two regional trade blocs of the world.
Name four pillars of human development.
What do you mean by the composition of working population?
Write the names of two agro-based industries of India.