In 1704 Newton wrote Opticks, in which he expounded his Corpuscular theory of light.
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His idea was greeted with a
certain amount of skepticism because it contradicted Newton's Corpuscular theory.
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The ultimate source of Newton's conviction that light is Corpuscular was his recognition that individual rays of light
have immutable properties;
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In the 18th century Newton's Corpuscular theory was held to be true;
only after Young's well-known slit experiment in 1803 were most scientists persuaded to believe Huygens's theory.
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However, Isaac Newton, who did many experimental investigations of light,
had rejected the wave theory of light and developed his Corpuscular theory of light according to which light is emitted
from a luminous body in the form of tiny particles.