When laser light reflects from a soap bubble, its photons can interfere with one another. In contrast, when sunlight reflects from a soap bubble, each photon can interfere only with itself. The reason for this difference is that
A. the photons in a laser beam are all part of a single wave, while those in sunlight are independent waves.
B. the photons in a laser beam have both electric and magnetic fields, while those in sunlight have only electric fields.
C. the photons in a laser beam have both electric and magnetic fields, while those in sunlight have only magnetic fields.
D. the photons in a laser beam are both vertically and horizontally polarized, while those in sunlight are only vertically polarized.
Answer:A
When laser light reflects from a soap bubble, its photons can interfere with one another. In contrast, when sunlight reflects from a soap bubble, each photon can interfere only with itself. The reason for this difference is that
A. the photons in a laser beam are all part of a single wave, while those in sunlight are independent waves. B. the photons in a laser beam have both electric and magnetic fields, while those in sunlight have only electric fields. C. the photons in a laser beam have both electric and magnetic fields, while those in sunlight have only magnetic fields. D. the photons in a laser beam are both vertically and horizontally polarized, while those in sunlight are only vertically polarized.