Semiconductor Electronics : Materials Devices and Simple Circuits — Physics STD 12 Science — Question

In a crystal, the atoms are located at the position of(a) Maximum potential energy       (b) Minimum potential energy(c) Zero potential energy(d) Infinite potential energy

If an electron and a photon propagate in the form of waves having the same wavelength, it implies that they have the same(a) Energy(b) Momentum(c) Velocity(d) Angular momentum

Eight small drops, each of radius r and having same charge q are combined to form a big drop. The ratio between the potentials of the bigger drop and the smaller drop is

A proton and an alpha particle both enter a region of uniform magnetic field B, moving at right angles to field B. If the radius of circular orbits for both the particles is equal and the kinetic energy acquired by proton is 1 MeV the energy acquired by the alpha particle will be:

In an ac circuit, the potential differences across an inductance and resistance joined in series are, respectively, 16V and 20V. The total potential difference across the circuit is.

Which of the following statements is false?

The colour of bright fringes nearest to the central achromatic fringe in the interference pattern with white light will be:

The magnetic susceptibility of any paramagnetic material changes with absolute temperature T as(a) Directly proportional to T(b) Remains constant(c) Inversely proportional to T(d) Exponentially decaying with T