The number of photoelectrons emitted is proportional to the intensity (number of photons) of the incident light, so intensity determines electron count.

The minimum frequency required to eject electrons in the photoelectric effect is called the threshold frequency.

The photoelectric effect is the emission of electrons (photoelectrons) from a metal surface when light shines on it.

The number of photoelectrons emitted per second is proportional to the intensity (number of incident photons) of the light; frequency determines energy per electron, not their number.

Einstein proposed the photoelectric effect explanation in 1905 (annus mirabilis papers).

Stopping potential depends on photon energy (frequency), not on intensity; changing distance alters intensity but not stopping potential.

Photoelectric effect demonstrates light's particle nature (photons) and also supports quantum aspects of electrons, so it indicates both, making option C correct.

Albert Einstein explained the photoelectric effect by proposing that light consists of quanta (photons), accounting for the observed energy-frequency relation.

Compton scattering involves loosely bound or free electrons (not tightly bound), and the photoelectric effect involves bound electrons, so both statements are false.

Maximum kinetic energy of photoelectrons depends on photon energy, which is determined by frequency (E = hν), not intensity.