Question

1What evidence did Sir Isaac Newton use to support his particle explanation of

light?
A Light produces an interference pattern.
B Light causes electrons to be emitted from a metal surface.
C Light reflects off metal surfaces,
D Light travels in a straight line, and it casts a shadow.

Answer 1

correct answer is D

Step-by-step explanation:

When you see a shadow, it is directly behind the object.

Answer 2

Light travels in a straight line, and it casts a shadow.

Step-by-step explanation:

This evidence allowed Sir Isaac Newton to elaborate his particle theory of light (also called corpuscular theory) which consider light as discrete particles travelling in straight line. Unfortunately, this theory cannot explain refraction, diffraction and interference, which require an understanding of the wave theory of light.