Physics Test 13...

In an oscillating LC circuit, the maximum charge on the capacitor is Q The charge on the capacitor when the energy is stored equally between the electric and magnetic field is

A lamp emits monochromatic green light uniformly in all directions. The lamp is 3% efficient in converting electrical power to electromagnetic waves and consumes 100 W of power. The amplitude of the electric field associated with the electromagnetic radiation at a distance of 5 m from the lamp will be nearly:

Two identical light waves, propagating in the same direction, have a phase difference d. After they superpose, the intensity of the resulting wave will be proportional to

Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a photosensitive material. The stopping potential is measured to be 3.57 V. The threshold frequency of the materials is:

The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. The smallest wavelength in the infrared region of the hydrogen spectrum (to the nearest integer) is

How does the binding energy per nucleon vary with the increase in the number of nucleons?

The intrinsic conductivity of germanium at 27° is 2.13 mho m^-1 and mobilities of electrons and holes are 0.38 and 0.18 m²v^-1s^-1 respectively. The density of charge carriers is

The current voltage relation of a diode is given by I =  where the applied voltage V is in volts and the temperature T is in degree kelvin. If a student makes an error measuring  while measuring the current of 5 mA at 300 K, what will be the error in the value of current in mA?