The maximum focal length of convex lens is for:
The path of scattered \( \alpha \)-particle is:
The power consumed in alternating current in a circuit containing only a capacitor will be:
Force of 80 Newton works between two point charges placed at a fixed distance apart in air. When these charges are placed at the same distance apart in a dielectric medium, then the force of 8 Newton works on it. The dielectric constant of the medium will be:
Find the ratio of the focal length of lens in air and that of lens when it is immersed in liquid.
In hydrogen atom, what is the ionization potential of the electron in the ground state?
A double convex lens is made of a material having refractive index 1.2. Both the surfaces of the lens are convex. If it is dipped into water of refractive index 1.33, it will behave like:
Write the equation for the relationship between specific conductivity (\( \sigma \)) and drift velocity (\( v_d \)).
State Ampere's Circuital Law.