Magnetic Field — Physics STD 12 Science — Question

Write the expression for the de Broglie wavelength associated with a charged particle having charge ‘q’ and mass ‘m’, when it is accelerated by a potential V.

The potential on any two parallel surfaces is equal. The distance between them is r. If a charge is moved from one surface to another, what will be the work done in this situation?

Can the image formed by a simple microscope be projected on a screen without using any additional lens or mirror?

What direction does the line perpendicular to the wave front express?

What is the resultant force on an electric dipole placed in a uniform electric field?

A resistor, inductor and a capacitor are joined with a de source. What is the magnitude of impedance of the circuit?

An NCC parade is going at a uniform speed of 6km/h through a place under a berry tree on which a bird is sitting at a height of 12.1m. At a particular instant the bird drops a berry. Which cadet (give the distance from the tree at the instant) will receive the berry on his uniform?

Can the earth's magnetic field be vertical at a place? What will happen to a lreely suspended magnet at such a place? What is the value of dip here?

A battery of constant voltage is connected to the diametrically opposite ends of a circular coil. What is magnetic field at the center of the coil?