Which idea did isaac newton’s experiments with light support?
(a) light is produced by the interaction of magnetic and electric fields.
(b) light is a wave because it has properties that are similar to radio waves.
(c) light is made of particles because it travels only in a straight path.
(d) light is a wave because it bends around barriers.

(C) Light is made of particles because it travels only in a straight path.

The correct answer is option C, that is, light is made of particles as it travels only in a straight path.  

According to Isaac Newton, the geometric nature of refraction and reflection of light could only be illustrated if the light was formed of particles, which is considered as corpuscles, as the waves do not seem to travel in a straight path. Newton disapproved theory of Christiaan Huygens that light was formed of waves.  

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.