Complete the following statement: the photon description of light is necessary to explain a. polarization b. photoelectric effect c. diffraction of light d. electron diffraction e. interference of light

Option B. Photo-Electric Effect

Explanation:

Photoelectric effect is based on the phenomena that when light having energy equal to the work function of the material is incident on that material, electrons are ejected from the surface of that material as a result of transfer of energy of photons(discrete EM wave energy packets).

Electrons are ejected only when the frequency of photon is more than the threshold frequency.

This experiment led to the understanding of light as a particle (photon) to explain photoelectric effect.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.