List of top Questions asked in UP Board XII- 2025

Write the unit of electric flux.
Self-inductance of a coil is 6 mH and the rate of flow of current in it is $10^3$ A/s. Find the induced emf produced in the coil.
Mention the major drawbacks of Rutherford's atomic model.
Prism angle of a prism is $A$ and angle of minimum deviation is equal to prism angle. Refractive index of the material of prism will be:
In electromagnetic waves, phase difference between electric and magnetic field vectors is:
To measure potential difference from a galvanometer, we connect in it:
Threshold wavelength for a metal surface is 2000 \AA. On incidence of radiation of 1000 \AA, the kinetic energy of emitted photoelectrons will be
The unit of magnetic dipole moment is
Charge on a piece of metal is \(-3.2\) coulomb. Number of excess electrons in the metal is: