Question

7 multiple choice 10 points which phenomenon is best explained using the particle model of light? light aligns in a single direction after passing through a polarizing filter. light waves overlap to produce areas of higher or lower intensity. light bends as it passes through a narrow opening, forming patterns. light causes electrons to leave a metal surface when it shines on it.

Explanation:

• Polarization (light aligning in a single direction after passing through a polarizing filter) is explained by the wave - like nature of light (transverse waves).
• Interference (light waves overlapping to produce areas of higher or lower intensity) is a wave - based phenomenon.
• Diffraction (light bending as it passes through a narrow opening, forming patterns) is also explained by the wave model of light.
• The photoelectric effect (light causing electrons to leave a metal surface when it shines on it) is best explained by the particle model of light. According to the particle model (photon concept), when a photon (a particle of light) with sufficient energy hits a metal surface, it can transfer its energy to an electron, enabling the electron to overcome the work - function of the metal and be ejected.

Answer:

Light causes electrons to leave a metal surface when it shines on it.