Question

one may conceive light to spread successively, by spherical waves. -christiaan huygens, 1600s what theory was huygens writing about? the particle theory of light the reflection of light off objects the way objects refract light the wave theory of light

Explanation:

Huygens proposed that light spreads as spherical waves, which is a key concept of the wave - theory of light. The other options do not match the description of light spreading as spherical waves.

Answer:

the wave theory of light